Noise Cancellation : Wireless Noise Cancellation Headphones to enjoy music without distraction,Customize your sound : Ambient Sound mode puts you in complete control of your listening experience. Switch it on, and you’ll be able to listen to your music, while still hearing the essential everyday sounds that keep you safe, like traffic noise and transport announcements Clearer hands-free calling : Conversation flows freely with easy, hands-free calling. Leave your phone where it is, just speak. WH-CH710N delivers clearer voice quality to the other person on the phone.Long Battery Life/Quick Charge : Battery life of 35 hours for long listening and 10 minutes quick charge for 1-hour playback