Sony Noise Cancelling Headphones WH-CH700N Headphone (WHCH700N/H) Headphones Walking accessories Music Features & details Noise cancellation adjusts to your environment with one push a Inc Long lasting listening with up to 35 hours of battery and quick charging Wireless Bluetooth streaming with NFC one-touch Built-in microphone for hands free calls and use with your voice assistant Customize your sound as you like with the “Sony | headphones connect” app for Android/iOS. Connectivity Technology: Bluetooth 4.1 with NFC