Bluetooth Headphones, LAMAGIA Wireless Stereo In-ear Earphones Sweatproof Noise Canceling Earbuds Sports Headset with Mic and Volume Control Bluetooth 4.0 version ensures high-fidelity stereo music within 10m, compatible with most Bluetooth-enabled devices. Rechargeable battery supports up to 7 hours music time and 150 hours standby time, only needing 2 hours for charging. Ergonomal design, sweat-resistant coating and behind-the-neck style, ideal for hiking,cycling and jogging,offering secure fit for sports. Simple user interface with voice prompt for easy operation on volume control, play/pause, previous/next song and answer/reject calls. Smart multi-pairing function allows user connects the bluetooth earphone to 2 bluetooth-enabled devices simultaneously.