Fangrui Product Details 1. Awei T80 Air Conduction Sport Tws Bluetooth Earbuds 2. Bluetooth Version: V5.3 Jerry Ad6973d4 3. Support Protocols: Hsp, Hfp, A2dp, Avrcp 4. Battery Capacity: 110mah (battery Without Protection Board, Headphone Board Lithium Battery Protection Ic) 5. Charging Compartment Battery Capacity: 450mah (with Protective Board) 6. Charging Time: 2.0h 7. Call Time: 9h 8. Play Time: 10h 9. Standby Time: 300h 10. Speaker Specifications: Diameter 16mm20 Ohm 11. Sensitivity: 93+-3 12. Impedance: 20 Ohms 13. Transmission Distance: Up To 10m 14. Voice Prompt: Support 15. Multipoint Connection: Not Supported 16. Wearing Method: Earhook Type 17. Interface: Type-c 18. Ipx6-level Strong Waterproof And Sweat-proof Function (only For Headphones, The Charging Case Is Not Waterproof) 19. The Charging Box Has A Digital Display For The Battery Level. The Earphones Have A Large Battery Capacity And Have A Long Standby Time. They Do Not Fit Into The Ears And Are Air-conducted. They Do Not Compress The Ear Holes And Are Comfortable To Wear.