Awei T80 Air Conduction Bluetooth Earbuds

1. Bluetooth version: V5.3 Jerry AD6973D4 2. Support protocols: HSP, HFP, A2DP, AVRCP 3. Battery capacity: 110mAh (battery without protection board, headphone board lithium battery protection IC) 4. Charging compartment battery capacity: 450mAh (with protective board) 5. Charging time: 2.0H 6. Call time: 9H 7. Play time: 10H 8. Standby time: 300H 9. Speaker specifications: Diameter 16mm/20 ohm 10. Sensitivity: 93+/-3 11. Impedance: 20 ohms