Ultimate Ears Megaboom 4 Portable Waterproof Bluetooth Speaker with Powerful 360-degree Sound and Thundering Bass, Floating Speaker with 20-Hour
360-Degree Sound: The MEGABOOM 4 portable waterproof Bluetooth speaker features a bigger size and larger woofer for powerful 360-degree sound and thundering bass with great balance and clarity 20 Hours of Boom: This waterproof portable speaker has a massive 20-hour battery life and the latest cell technology, so you can boom all day long Virtually Indestructible Bluetooth Waterproof Speaker: A floating Bluetooth speaker that's rated IP67 waterproof and guaranteed to make a splash at your next pool party PartyUp: Use PartyUp on the Ultimate Ears BOOM app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers, creating the ultimate surround sound experience Drop-Proof Wireless Speaker With Range: Enjoy 147 feet (45 meters) of wireless range and 3.28 feet (1 meter) of drop protection
360-Degree Sound: The MEGABOOM 4 portable waterproof Bluetooth speaker features a bigger size and larger woofer for powerful 360-degree sound and thundering bass with great balance and clarity 20 Hours of Boom: This waterproof portable speaker has a massive 20-hour battery life and the latest cell technology, so you can boom all day long Virtually Indestructible Bluetooth Waterproof Speaker: A floating Bluetooth speaker that's rated IP67 waterproof and guaranteed to make a splash at your next pool party PartyUp: Use PartyUp on the Ultimate Ears BOOM app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers, creating the ultimate surround sound experience Drop-Proof Wireless Speaker With Range: Enjoy 147 feet (45 meters) of wireless range and 3.28 feet (1 meter) of drop protection
360-Degree Sound: The MEGABOOM 4 portable waterproof Bluetooth speaker features a bigger size and larger woofer for powerful 360-degree sound and thundering bass with great balance and clarity 20 Hours of Boom: This waterproof portable speaker has a massive 20-hour battery life and the latest cell technology, so you can boom all day long Virtually Indestructible Bluetooth Waterproof Speaker: A floating Bluetooth speaker that's rated IP67 waterproof and guaranteed to make a splash at your next pool party PartyUp: Use PartyUp on the Ultimate Ears BOOM app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers, creating the ultimate surround sound experience Drop-Proof Wireless Speaker With Range: Enjoy 147 feet (45 meters) of wireless range and 3.28 feet (1 meter) of drop protection
360-Degree Sound: The MEGABOOM 4 portable waterproof Bluetooth speaker features a bigger size and larger woofer for powerful 360-degree sound and thundering bass with great balance and clarity 20 Hours of Boom: This waterproof portable speaker has a massive 20-hour battery life and the latest cell technology, so you can boom all day long Virtually Indestructible Bluetooth Waterproof Speaker: A floating Bluetooth speaker that's rated IP67 waterproof and guaranteed to make a splash at your next pool party PartyUp: Use PartyUp on the Ultimate Ears BOOM app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers, creating the ultimate surround sound experience Drop-Proof Wireless Speaker With Range: Enjoy 147 feet (45 meters) of wireless range and 3.28 feet (1 meter) of drop protection
in 34 offers
The lowest price for Ultimate Ears Megaboom 4 Portable Waterproof Bluetooth Speaker with Powerful 360-degree Sound and Thundering Bass, Floating Speaker with 20-Hour right now is $155.00 at Retravision, compared across 20 retailers.
The all-time low was $129.00 on 5 June 2026 — today's price is 20% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 15 June 2026.
Last updated at 15/06/2026 06:14:08
Ultimate Ears MEGABOOM 4 Portable Waterproof Bluetooth Speaker with Powerful 360-Degree Sound and Thundering Bass, Floating Speaker with 20-Hour
Free delivery
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Ultimate Ears BOOM 4 Portable Bluetooth Speaker (Black) | Retravision
Delivery between 16–24 June $9.28
Ultimate Ears Boom 4 Portable Bluetooth Speaker (Black)
Free delivery between 18–22 June
Ultimate Ears Boom 4 Speaker - Black
Delivery between 18–22 June $10
Ultimate Ears Boom 4 (Black)
Delivery between 18–22 June $10
Ultimate Ears Boom 4 Portable Bluetooth Speaker - Black [984-001971]
Delivery $15
Ultimate Ears Boom 4 Portable Bluetooth Speaker Black 984-001971
Delivery between Wed – Fri $6
Ultimate Ears Boom 4 Portable Bluetooth Speaker - Black [984-001971]
Delivery $10
Ue Boom 4 Ultimate Ears - (aus Stock) Brand & Sealled
Free delivery
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Ultimate Ears Boom 4 Portable Bluetooth Speaker - Black
Delivery $9.80
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on influenster.com
Obsessed is an understatement! This portable speaker truly is so good. It’s pretty compact, and it has a loop so you can attach it to whatever you please. The sound quality is really clean and it gets pretty loud without any feedback. I had it on in one room of the house, and I could still hear it rooms away. It feels like you’re at the concert for whatever artist you’re playing. I took it in the bathroom with me to listen while I was showering. I didn’t dunk it in the water so I can’t fully attest to the “waterproof” claim, but it definitely can hang with the condensation. Battery life is solid, and gives hours of listening without having to recharge. It took me less than one minute to get it connected after downloading the app which I’m pretty sure you could ... MoreObsessed is an understatement! This portable speaker truly is so good. It’s pretty compact, and it has a loop so you can attach it to whatever you please. The sound quality is really clean and it gets pretty loud without any feedback. I had it on in one room of the house, and I could still hear it rooms away. It feels like you’re at the concert for whatever artist you’re playing. I took it in the bathroom with me to listen while I was showering. I didn’t dunk it in the water so I can’t fully attest to the “waterproof” claim, but it definitely can hang with the condensation. Battery life is solid, and gives hours of listening without having to recharge. It took me less than one minute to get it connected after downloading the app which I’m pretty sure you could probably do without if you wanted to skip that part. I will get so many uses out of this, and it blows other portable speakers I’ve used in the past out of the water.
originally posted on johnlewis.com
WOW WOW & WOW... I'm speechless!Now I can see why Ultimate Ears have named their speakers "BOOM", they will actually blow you away with the crisp quality sound and bass. It will most definitely get a party started with just one of these alone. I love how the entire Boom range allows you to pair multiple speakers to create an atmosphere as loud as you want. I love how the entire room is filled with immersive sound.This little speaker is absolutely magic, it's fuss free and it's super easy to use. The speaker instantly pairs to my device via Bluetooth. The style is minimalistic and sleek, I also love how the controls light up on the top of the speaker. It's super easy to charge up and holds its charge for 15 hours on a single charge.This speaker is waterproof, ... MoreWOW WOW & WOW... I'm speechless!Now I can see why Ultimate Ears have named their speakers "BOOM", they will actually blow you away with the crisp quality sound and bass. It will most definitely get a party started with just one of these alone. I love how the entire Boom range allows you to pair multiple speakers to create an atmosphere as loud as you want. I love how the entire room is filled with immersive sound.This little speaker is absolutely magic, it's fuss free and it's super easy to use. The speaker instantly pairs to my device via Bluetooth. The style is minimalistic and sleek, I also love how the controls light up on the top of the speaker. It's super easy to charge up and holds its charge for 15 hours on a single charge.This speaker is waterproof, it floats and it's drop proof and dust proof.. is there anything this speaker can't do? it's absolute genius!I love this speaker, I'm going to buy some more to pair them up and I cannot wait to hear the sound get even better than it already is.I have recommended this to my friends and family already as the speaker has been the star of the show when I've had guest over and it's great value for money.
originally posted on johnlewis.com
The UE mega boom is a fantastic portable speaker. The quality of sound for the size is excellent and I really loved that you could adjust the sound settings for it on the app too. It really does have a booming bass - something that's often lacking in portable speakers. I loved that it's waterproof which gave me confidence to use it by the pool or even if there was a chance of rain outside!! The app was really easy to navigate and I love that you could connect more than one speaker if you have multiple. You can set up your favourite playlist to autoplay using the magic button on the speaker so you can instantly hit play which is a fab feature.I found it super simple to set up - pretty much switch on and go, especially if you use the Bluetooth connection but the app ... MoreThe UE mega boom is a fantastic portable speaker. The quality of sound for the size is excellent and I really loved that you could adjust the sound settings for it on the app too. It really does have a booming bass - something that's often lacking in portable speakers. I loved that it's waterproof which gave me confidence to use it by the pool or even if there was a chance of rain outside!! The app was really easy to navigate and I love that you could connect more than one speaker if you have multiple. You can set up your favourite playlist to autoplay using the magic button on the speaker so you can instantly hit play which is a fab feature.I found it super simple to set up - pretty much switch on and go, especially if you use the Bluetooth connection but the app was also really easy to install and set up. The battery lasts really well too. It's not too heavy, so very easy to take out and about and move wherever you need at home. Super impressed and as a music lover, I've really enjoyed using it!
| Speaker maximum output power | 20 Watts |
| Connectivity technology | Bluetooth |
| Audio output mode | Surround |
| Mounting type | Tabletop |
| Series Number | 4 |
Ultimate Ears MEGABOOM 4 Portable Waterproof Bluetooth Speaker with Powerful 360-Degree Sound and Thundering Bass, Floating Speaker with 20-Hour
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Ultimate Ears BOOM 4 Portable Bluetooth Speaker (Black) | Retravision
Delivery between 16–24 June $9.28
Ultimate Ears Boom 4 Portable Bluetooth Speaker (Black)
Free delivery between 18–22 June
Ultimate Ears Boom 4 Speaker - Black
Delivery between 18–22 June $10
Ultimate Ears Boom 4 (Black)
Delivery between 18–22 June $10
Obsessed is an understatement! This portable speaker truly is so good. It’s pretty compact, and it has a loop so you can attach it to whatever you please. The sound quality is really clean and it gets pretty loud without any feedback. I had it on in one room of the house, and I could still hear it rooms away. It feels like you’re at the concert for whatever artist you’re playing. I took it in the bathroom with me to listen while I was showering. I didn’t dunk it in the water so I can’t fully attest to the “waterproof” claim, but it definitely can hang with the condensation. Battery life is solid, and gives hours of listening without having to recharge. It took me less than one minute to get it connected after downloading the app which I’m pretty sure you could ... MoreObsessed is an understatement! This portable speaker truly is so good. It’s pretty compact, and it has a loop so you can attach it to whatever you please. The sound quality is really clean and it gets pretty loud without any feedback. I had it on in one room of the house, and I could still hear it rooms away. It feels like you’re at the concert for whatever artist you’re playing. I took it in the bathroom with me to listen while I was showering. I didn’t dunk it in the water so I can’t fully attest to the “waterproof” claim, but it definitely can hang with the condensation. Battery life is solid, and gives hours of listening without having to recharge. It took me less than one minute to get it connected after downloading the app which I’m pretty sure you could probably do without if you wanted to skip that part. I will get so many uses out of this, and it blows other portable speakers I’ve used in the past out of the water.
WOW WOW & WOW... I'm speechless!Now I can see why Ultimate Ears have named their speakers "BOOM", they will actually blow you away with the crisp quality sound and bass. It will most definitely get a party started with just one of these alone. I love how the entire Boom range allows you to pair multiple speakers to create an atmosphere as loud as you want. I love how the entire room is filled with immersive sound.This little speaker is absolutely magic, it's fuss free and it's super easy to use. The speaker instantly pairs to my device via Bluetooth. The style is minimalistic and sleek, I also love how the controls light up on the top of the speaker. It's super easy to charge up and holds its charge for 15 hours on a single charge.This speaker is waterproof, ... MoreWOW WOW & WOW... I'm speechless!Now I can see why Ultimate Ears have named their speakers "BOOM", they will actually blow you away with the crisp quality sound and bass. It will most definitely get a party started with just one of these alone. I love how the entire Boom range allows you to pair multiple speakers to create an atmosphere as loud as you want. I love how the entire room is filled with immersive sound.This little speaker is absolutely magic, it's fuss free and it's super easy to use. The speaker instantly pairs to my device via Bluetooth. The style is minimalistic and sleek, I also love how the controls light up on the top of the speaker. It's super easy to charge up and holds its charge for 15 hours on a single charge.This speaker is waterproof, it floats and it's drop proof and dust proof.. is there anything this speaker can't do? it's absolute genius!I love this speaker, I'm going to buy some more to pair them up and I cannot wait to hear the sound get even better than it already is.I have recommended this to my friends and family already as the speaker has been the star of the show when I've had guest over and it's great value for money.
The UE mega boom is a fantastic portable speaker. The quality of sound for the size is excellent and I really loved that you could adjust the sound settings for it on the app too. It really does have a booming bass - something that's often lacking in portable speakers. I loved that it's waterproof which gave me confidence to use it by the pool or even if there was a chance of rain outside!! The app was really easy to navigate and I love that you could connect more than one speaker if you have multiple. You can set up your favourite playlist to autoplay using the magic button on the speaker so you can instantly hit play which is a fab feature.I found it super simple to set up - pretty much switch on and go, especially if you use the Bluetooth connection but the app ... MoreThe UE mega boom is a fantastic portable speaker. The quality of sound for the size is excellent and I really loved that you could adjust the sound settings for it on the app too. It really does have a booming bass - something that's often lacking in portable speakers. I loved that it's waterproof which gave me confidence to use it by the pool or even if there was a chance of rain outside!! The app was really easy to navigate and I love that you could connect more than one speaker if you have multiple. You can set up your favourite playlist to autoplay using the magic button on the speaker so you can instantly hit play which is a fab feature.I found it super simple to set up - pretty much switch on and go, especially if you use the Bluetooth connection but the app was also really easy to install and set up. The battery lasts really well too. It's not too heavy, so very easy to take out and about and move wherever you need at home. Super impressed and as a music lover, I've really enjoyed using it!
I've been using the Ultimate Ears Boom 4 for about a week now.It was easy to set up and use:- charged it for about 5 hours out the box with the USB-C cable that's provided- download the UE Boom app (you need to set up an account if you don't already have one)- set up via Bluetooth on your phone- start playing your musicNow, I don't have a Spotify or Amazon music account, so wasn't able to test that, but was able to stream my YouTube music easily it's set up as a Bluetooth speaker. Bear in mind that Bluetooth only works over ~10m so your phone/tablet can't go too far away from the speaker.I haven't yet needed to charge it again and have used it approximately 30 minutes a day for a week.I love the portability and have used it in the garden as well as ... MoreI've been using the Ultimate Ears Boom 4 for about a week now.It was easy to set up and use:- charged it for about 5 hours out the box with the USB-C cable that's provided- download the UE Boom app (you need to set up an account if you don't already have one)- set up via Bluetooth on your phone- start playing your musicNow, I don't have a Spotify or Amazon music account, so wasn't able to test that, but was able to stream my YouTube music easily it's set up as a Bluetooth speaker. Bear in mind that Bluetooth only works over ~10m so your phone/tablet can't go too far away from the speaker.I haven't yet needed to charge it again and have used it approximately 30 minutes a day for a week.I love the portability and have used it in the garden as well as around the house, in the kitchen and dining room. Buttons are easy to use and their settings are easy to figure out.The only negative that I can find is that I've had it stood mostly near an open window, and it appears to gather dust really easily. This dust shows up on a darker product, if this is important to you.I'd recommend it for its ease of use and set up.
Easy to set up and it connected to my phones bluetooth straight away, not always the case with bluetooth so that was a promising start! The controls are on the top and all very self explanatory when you press the top it lights up so you can see the controls. It has an impressive charge time I had a good 5 hours out of it. before it needed charging which is done by lifting a little flap at the back and inserting the included micro charger. I love that it's small and easy to move about wherever you are, I have used it in the bathroom as it is waterproof, the kitchen, and taken it to the studio to use for ballet class. You can create a playlist on your phone using the usual platforms and then add it to the Ultimate Ears App which you need to download during set up and ... MoreEasy to set up and it connected to my phones bluetooth straight away, not always the case with bluetooth so that was a promising start! The controls are on the top and all very self explanatory when you press the top it lights up so you can see the controls. It has an impressive charge time I had a good 5 hours out of it. before it needed charging which is done by lifting a little flap at the back and inserting the included micro charger. I love that it's small and easy to move about wherever you are, I have used it in the bathroom as it is waterproof, the kitchen, and taken it to the studio to use for ballet class. You can create a playlist on your phone using the usual platforms and then add it to the Ultimate Ears App which you need to download during set up and it will play your tracks, if you want to skip any you can press the top of the speaker. I really cannot find anything negative to say about this speaker it's fabulous and also looks attractive.
I am really impressed with this speaker, the design is simple and stylish, fitting into any style of home. The sound quality is great, with the standout feature being the spatial audio which really adds to the experience. It is certainly loud enough, I have not felt the need to use it over 50% volume as that is plenty for me. The battery is really long lasting and it's great that you are able to check what level of charge it has both on the speaker itself (by holding the plus and minus buttons) and in the Ultimate Ears Boom app.Set-up was absolutely seamless and was simply a press and hold to enter pairing mode and I was instantly able to connect my phone. The app has some handy features such as remote power on, the ability to set-up a playlist to auto-play ... MoreI am really impressed with this speaker, the design is simple and stylish, fitting into any style of home. The sound quality is great, with the standout feature being the spatial audio which really adds to the experience. It is certainly loud enough, I have not felt the need to use it over 50% volume as that is plenty for me. The battery is really long lasting and it's great that you are able to check what level of charge it has both on the speaker itself (by holding the plus and minus buttons) and in the Ultimate Ears Boom app.Set-up was absolutely seamless and was simply a press and hold to enter pairing mode and I was instantly able to connect my phone. The app has some handy features such as remote power on, the ability to set-up a playlist to auto-play (through Spotify or Amazon Music) when the 'magic' button on the speaker is pressed, which to me is incredibly useful. Instead of having to manually select music on your phone, you simply turn the speaker on and hold the center button. I now have a specific speaker playlist which I am loving! The app also allows you to connect up to over 150 speakers to play the same audio simultaneously, which if hosting a large gathering I imagine would be incredibly useful.Overall this is really great quality, stylish speaker with some nifty features and a really quick and easy set-up. I am very pleased with it.
An impressive sounding speaker for its size. Easy to connect and use straight away, with even greater functionality if you download the app. Given its name, I was worried that the bass might be too much for my personal taste. Thankfully the sound is well balanced, full, and can be adjusted to suit individual preference. I have felt no need to change the basic settings which I found coped well with a range of different music. I have previously owned a similar speaker from a well known brand that operates through a wi-fi network as well as bluetooth. I actually prefer the sound of this speaker, although the obvious disadvantage is that it only operates via bluetooth. Given that it is designed with portability including outdoor use in mind, I don't think this is a big ... MoreAn impressive sounding speaker for its size. Easy to connect and use straight away, with even greater functionality if you download the app. Given its name, I was worried that the bass might be too much for my personal taste. Thankfully the sound is well balanced, full, and can be adjusted to suit individual preference. I have felt no need to change the basic settings which I found coped well with a range of different music. I have previously owned a similar speaker from a well known brand that operates through a wi-fi network as well as bluetooth. I actually prefer the sound of this speaker, although the obvious disadvantage is that it only operates via bluetooth. Given that it is designed with portability including outdoor use in mind, I don't think this is a big issue.
This speaker is waterproof! It has been living in the bathroom so far and has been rained on by an unruly shower. So nice to not have to worry about a speaker getting wet.I love the cylindrical shape of this speaker, making it appear softer and more interesting than all the square and rectangular ones. I have discovered that is also fits into a cup holder, which is handy for transit.I am not a very technical person but found setting this up really straightforward and simple to use. It has really helpful volume adjustment buttons on the front. The place for the charging cable is well placed, although I haven't needed to charge it very often as it seems to go for an extremely long time without the need to charge.The sound is great and I'm sure the shape of the ... MoreThis speaker is waterproof! It has been living in the bathroom so far and has been rained on by an unruly shower. So nice to not have to worry about a speaker getting wet.I love the cylindrical shape of this speaker, making it appear softer and more interesting than all the square and rectangular ones. I have discovered that is also fits into a cup holder, which is handy for transit.I am not a very technical person but found setting this up really straightforward and simple to use. It has really helpful volume adjustment buttons on the front. The place for the charging cable is well placed, although I haven't needed to charge it very often as it seems to go for an extremely long time without the need to charge.The sound is great and I'm sure the shape of the speaker makes it seem like the music isn't just coming from one place. It has the ability to be very loud, and thankfully also very quiet!As this speaker is so transportable, I can well imagine taking this speaker out in the garden for BBQs and on camping trips, picnics and the like, whilst not having to worry about it getting wet in this lovely summer weather!
This is my first Bluetooth portable speaker, so I do not have any benchmark. The unit is compact and is pleasing to the eye with its matt black finish, fitting in easily into any space. I have not tested its waterproof claims.The Boom 4 is well finished and has a rugged, quality feel. The large white volume symbols on the side may not be to everyone's taste but I found them relatively inoffensive.The app was easy to download to my Iphone and getting the unit started was uncomplicated. The 'Magic' button proved useful, and I was playing music from my phone in minutes. Pairing was easy.I have tried the speaker with a variety of music genres, and it performed surprisingly well across all of them, even classical. Bass and treble were well defined, although with ... MoreThis is my first Bluetooth portable speaker, so I do not have any benchmark. The unit is compact and is pleasing to the eye with its matt black finish, fitting in easily into any space. I have not tested its waterproof claims.The Boom 4 is well finished and has a rugged, quality feel. The large white volume symbols on the side may not be to everyone's taste but I found them relatively inoffensive.The app was easy to download to my Iphone and getting the unit started was uncomplicated. The 'Magic' button proved useful, and I was playing music from my phone in minutes. Pairing was easy.I have tried the speaker with a variety of music genres, and it performed surprisingly well across all of them, even classical. Bass and treble were well defined, although with classical there was a small drop-off in clarity, especially in the quieter sections. The 360-degree sound promise proved to be accurate.There is an attachment on the side to fit a lanyard, but no lanyard fitted. I would have liked this addition supplied as part of the package.I am sure there are better, more expensive, speakers out there but for its value for money, clarity of sound, looks and ruggedness I think the Boom 4 is a five star buy.
If you're looking for a reliable and portable speaker then look no further! Designed with many occasions in mind, both adventure seekers and casual listeners can get various uses from this speaker.It's easy to set up via Bluetooth and I was able to start using it straight away (it requires an app and an account - Spotify is not yet compatible with the app so I couldn't test it). For everyday use it's great for taking around the house whilst doing the housework, or having in the kitchen whilst cooking dinner. The waterproof feature offers peace of mind when using in the bathroom or near the kitchen sink. I wouldn't reccommend this for travelling as it's fairly big and sturdy - I believe Ultimate Ears offer different model(s) best suited for this.The quality of ... MoreIf you're looking for a reliable and portable speaker then look no further! Designed with many occasions in mind, both adventure seekers and casual listeners can get various uses from this speaker.It's easy to set up via Bluetooth and I was able to start using it straight away (it requires an app and an account - Spotify is not yet compatible with the app so I couldn't test it). For everyday use it's great for taking around the house whilst doing the housework, or having in the kitchen whilst cooking dinner. The waterproof feature offers peace of mind when using in the bathroom or near the kitchen sink. I wouldn't reccommend this for travelling as it's fairly big and sturdy - I believe Ultimate Ears offer different model(s) best suited for this.The quality of the sound is impressive and I find the 360 feature makes a huge difference and sets this speaker apart from others I've used. You can even customise the signature to your own personal preferences via the app, and you can easily control from the app or from the speaker itself so it's very convenient.Finally, sustainability is on the forefront of many consumer's minds so learning that this speaker is made with recycled plastic is a huge bonus for me, and achieving this without comprising on quality or durability is a double bonus!
| Speaker maximum output power | 20 Watts |
| Connectivity technology | Bluetooth |
| Audio output mode | Surround |
| Mounting type | Tabletop |
| Series Number | 4 |