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. Made for life on the move, the WH-CH510 headphones have a lightweight design and are fully wireless. With up to 35 hours of battery life, they’ll have you listening throughout the day. 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 to both 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. Full Specifications & Features HEADPHONE TYPE Closed Dynamic DRIVER UNIT 30mm MAGNET Ferrite FREQUENCY RESPONSE(BLUETOOTH® COMMUNICATION) 20Hz - 20,000Hz ( (44.1kHz Sampling) VOLUME CONTROL Yes WEARING STYLE Supra Aural BATTERY CHARGE TIME Approx. 4.5 hrs (Full charge) BATTERY CHARGE METHOD USB type-C BATTERY LIFE(CONTINUOUS MUSIC PLAYBACK TIME) Max. 35h (fully charged) BATTERY LIFE(CONTINUOUS COMMUNICATION TIME) Max. 30h (fully charged) BATTERY LIFE(WAITING TIME) Max. 200h (fully charged) BLUETOOTH® VERSION Bluetooth Specification version 5.0 EFFECTIVE RANGE Line of sight approx.10m FREQUENCY RANGE 2.4GHz band (2.4000GHz-2.4835GHz) PROFILE A2DP, AVRCP, HFP, HSP SUPPORTED AUDIO FORMAT(S) SBC, AAC SUPPORTED CONTENT PROTECTION SCMS-T Sony is committed not only to offering products, services and content that deliver exciting experiences but also to working towards our goal of a zero environmental footprint throughout our business activities.