Wireless BLUETOOTH streaming Up to 35 hours of battery life and Quick Charging Lightweight/Swivel design for portability Product details Headset · Bluetooth · With Microphone · Use With Mobile Phones · Black · On-ear · Sports Lightweight, all-day listening with quality sound Bluetooth wireless technology Up to 35 hours of battery life Easy hands-free calling Voice assistant compatible The Sony WHCH510B wireless Bluetooth headphones allow you to listen to all of your favourite tunes without the worry of tangling cables. It pairs effortlessly to your smartphone or tablet for cable free listening. These headphones are able to connect to your device from up to 10 metres away to give you a little extra freedom around your home, you can even walk around your home with your headphones on and still be listening to your music. Thanks to the impressive battery life of up to 35 hours, these headphones offer over four workdays of listening or plenty of daily commute journeys before they need recharging. The quick-charge function offers an hour more of music from just ten minutes of charging which is perfect for that last stretch of the day. There is no need to worry about having to get your phone out to control your music or take phone calls thanks to the built-in microphone. To make phone calls all you need to do is hold the play button to activate the voice assistant and say who you want to call, your call will then be connected. The voice assistant also allows you to ask for directions, play music and much more. The WHCH510B wireless headphones are lightweight and comfortable thanks to the soft earpads. The earcups also swivel flat which make storing your new headphones easy when they are not in use.