Top features-Immersive 360 degree sound for lifelike immersive audio-Robust and water-resistant with a seamless aluminium design-Smartphone connectivity lets you control and add more speakers-Up to 12 hours of battery lasts all day Immersive 360 degree sound Producing powerful lifelike sound from every angle the Bose SoundLink Revolve lets you enjoy the same sound quality no matter where you are around the speaker. Place it in the centre of the room for great sound in every direction or set it near a wall to let the sound radiate around you. Smartphone connectivity Using the Bose Connect app you can easily control the SoundLink from any Bluetooth device. So if you need to leave the room your friends can easily take control of the music using their phone. If you dont have your phone handy you can use the Revolve Speaker to send a text message or make a call-just press and hold the multi-function button to use Siri and Google Now. And if you want even more volume the app lets you connect multiple SoundLink Revolve Speakers in Party Mode-enhance the audio quality and spread out the sound with Stereo Mode. Robust and water-resistant Dont worry if you knock the Revolve Wireless Speaker over-the soft and flexible bumpers mean that whether you toss it in your bag or accidentally drop it its not easy to damage. The SoundLink Speaker is water-resistant making it perfect for parties or barbecues as well as time by the pool. With an IPX4 rating the speaker is able to easily withstand an accidental shower of water. Up to 12 hours of battery Enjoy a full days listening without needing to reach for a charger with the Revolves rechargeable battery which lasts for up to 12 hours.