All-day listening with quality sound 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. Bluetooth wireless technology Listen to your favorite tracks wirelessly with a Bluetooth wireless technology by pairing your smartphone or tablet. 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. 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.