1. Left erphone right earphone can be used alone. 2. Tap control function. 3. Play music ,Support last song, next song. Light weight, easy to carry, you can use it anytime anywhere, just enjoy your life. Bluetooth-compatible 5.1 technology: Compared with the previous Bluetooth-compatible V4.2 wireless earbuds. faster transmission speed more stable connectivity with no signal loss or music dropouts. One-step paring technology: You don\'t need any skills to use our true wireless earbuds. First step - open the charging case. Second step - turn on the Bluetooth-compatible of your phone and choose..syi