Features: 1. Remove the left and right LR headphones from the charging case. The ear will automatically open and connect 2. Turn on the phone Bluetooth search and click on the main headset name to pair. 3. When used again, they will automatically connect to your Bluetooth device ♦ True wireless stereo, HIFI sound. ♦2000mAh Charging BoxPower BankScreen displayPhone Holder ♦ Both the left and right ears have full Bluetooth headset functionality and can be used individually or in pairs. ♦ Dual mode Bluetooth 5.0, ultra low power consumption. ♦ Bluetooth transmission distance: 10 meters barrier-free. ♦ Listening to song time: about 3-4 hours ♦ Earphone battery capacity 50mAH ♦ Battery capacity charge box: Built-in 2000mAh large capacity battery. ♦ Standby time: about 120 hours. package list: 2 x bluetooth earbuds 1 x charge bank 1 x user manual 1 x charge cable