Y80 Wireless Bluetooth Headset In Ear Binaural Stereo Headset Bluetooth 5.0 Headset(Black ) Item Type: Bluetooth Earphone Material: ABS Bluetooth Version: V5.0 Battery Capacity (Charging Case): 200mAh Battery Capacity (Earplugs): Left/Right (45mAh) Charging Time: 1-2 hours Standby Time: 12 hours Working Time: 3 hours Support Protocol: Fit for A2DP / HFP / HSP / AVRCP / SPP Transmission Frequency: (2400-2483.5) MHz Working Distance: Approx. 10m / 32.8ft  (without obstacles) How e: 1. Turn on the switch of the charging compartment (the blue light or the red light is on). 2. Open the upper cover of the charging compartment and take out the earphones. The earphones are automatically turned on and paired (turn on the charging box switch before opening the charging box, which is the prerequisite for the earphones to automatically turn on). 3. Open the Bluetooth settings of the mobile phone or other devices, search for Bluetooth and click Connect. Begin e. 4. Insert the charging cable into one end of the charging compartment and connect the other end to the power supply to charge the charging compartment. 5. Touch control, long press for 5 seconds to switch on and off. Put the earphones back into the charging compartment and automatically shut down.