SONY WH-CH510 Wireless Headphones / WH CH510 / WHCH510 Listen to your music throughout the day without interruptions. The WH-CH510 are wireless, lightweight, and have a battery life long enough to keep up with you. • Listen all day long with up to 35 hours of playback time • 30mm driver unit for dynamic sound • Swivel design for easy travel • Easy hands-free calling and voice assistant commands with microphone • Voice assistant-compatible for easy access to your smartphone • Next-generation USB Type C charging. • In the box: USB Type-C cable All day power and quick charging With up to 35 hours of battery life, you’ll have enough power for even long trips away. If your headphones are running low on power, a 10-minute quick charging will give you up to 90 minutes of play. Take music anywhere The lightweight design and swivel earcups mean you can slip your headphones into a bag when you’re on the move. Plus, the slim, adjustable headband is designed both to look and feel good. Easy operation with buttons Use the buttons to play, stop or skip through tracks and adjust the volume. Voice-assistant compatible A simple button press connects you to your smartphone's voice assistant to get directions, play music, and communicate with contacts Easy hands-free calling Conversation flows freely with easy hands-free calling, thanks to the built-in microphone. No need to even take your phone from your pocket. General Features HEADPHONE TYPE: Closed Dynamic DRIVER UNIT: 11.82 in MAGNET: Ferrite FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION): 20 Hz–20,000 Hz (44.1 kHz Sampling) VOLUME CONTROL: Yes WEARING STYLE: Supra Aural Battery BATTERY CHARGE TIME: Approx. 4.5 hrs (Full charge) BATTERY CHARGE METHOD: USB type-C Bluetooth® Specification BLUETOOTH® VERSION: version 5.0