Fingerprint Touch 5.0 Bluetooth Headset Handsfree HIFI Wireless Earphone Waterproof Earpiece With Mic 110mAh Lithium Battery Specification: 1. Bluetooth version: Dual-mode Bluetooth V5.0 ultra-low power consumption 2. Supporting agreement: A2DP 1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 3. Bluetooth frequency band: 24GHz 4. Bluetooth transmission distance: 10M 5. Battery capacity: 110mAh lithium battery 6. Standby time: 170 hours 7. Talk/Playtime: About 12/10 hours 8. Charging time: About 1 hour Bluetooth Pairing: 1. Connect: Pull the side power switch to the left to turn on, you can see the red and blue lights flashing alternately, and then turn on the Bluetooth, you can search for "'""'"ME-100"'""'" and click to connect. Other Bluetooth devices can also be connected. You can listen to music or make a call. Voice switching: In the search state, double-click the function key quickly to switch between Chinese and English. Bluetooth use: 1. Call When the headset is turned on and successfully connected with the mobile phone or Bluetooth device with a call function, you can make and receive calls. When the call comes, the headset will remind you of the incoming call and the number of the incoming call, touch the function key once to answer the call,