Stay powered up for days: With up to 50 hours of battery life, you can listen to your favourite music without worrying about running out of charge. And, if your headphones battery is running low, a three-minute quick-charge can give you 1.5 hours of listening time Crystal-clear calls: A built-in microphone provides you with hands-free calling, and it also works just as well for joining an online class or work meeting Your sound, just how you like it: Tailor sound to your personal preference by choosing from a variety of pre-sets to match sound quality with the genre of music you're listening to. Or create and save your own pre-sets using the EQ Custom feature on the Sony Headphones Connect app Multipoint connectivity: For total convenience, these Bluetooth headphones can be paired with two Bluetooth devices at the same time. So when a call comes in, your headphones know which device is ringing and connects to the right one automatically Designed for all-day comfort: Not only is the design stylish, but it's also crafted with ease-of-use in mind. The lightweight build and swivel earcups gently slip on and off, while the adjustable headband, cushion and soft ear pads give you all-day comfort