Top features: – Active noise-cancelling for uncompromising sound quality- Comfortable design and fit so you can enjoy music all day- Rechargeable and replaceable battery to keep you energised Active noise-cancellingThanks to the ability to block external sounds and the freedom to move unhindered, the B&O BeoPlay H9 Wireless Bluetooth Noise-Cancelling Headphones offer uncompromising sound quality so that you can focus on your music, and phone conversations. With one simple swipe, intuitive touch controls on the ear-cup let you turn noise-cancelling on and off, adjust volume and find tracks, as well as handle calls. Comfortable design and fit Polished aluminium and soft genuine leather work together to give the BeoPlay H9 its exclusive, lightweight and sturdy design. Not only will these headphones age beautifully, the over-ear design, and adaptive memory foam cradles your ears in luxurious comfort so that you can keep them on all day for increased productivity and enjoyment. Rechargeable and replaceable batteryWith up to 16 hours of wireless and noise-cancelling technology, you can always count on the H9 to keep you going. If you do run out of battery, simply attach the audio cord to continute listening to more of your favourite tunes, or hands-free conversations when connected to your smartphone or music player.