Details Sony WH-CH700N is a Wireless Over-Ear Headphones featuring One Push Artificial Intelligence Noise Cancelling that adjusts to your environment. For instant connectivity the headphones comes with NFC for quick and seamless paring. Sony WH-CH700N offers up to 35 hours of power (depending on your sound settings) and can be recharged via USB. Its Quick Charging feature gives 60 minutes s of play back from just 10 minutes of charge. Soft ear pads offer premium as well as light feeling so you may wear the headphones even during long listening sessions.