Awei Tz12 Air Conduction Ows Ear-Hook Bluetooth Ipx4

1. bluetooth version: v5.4 ab5656c2 2. channel system: stereo 3. supported protocols: hsp hfp a2dp avrcp 4. battery capacity: 50mah (without protection board, headphone board lithium battery protection ic) 5. charging compartment battery capacity: 300mah (with protection board) 6. music playback time: 8h 7. talk time: 7h 8. charging time: 1h 9. speaker specifications: ø14mm 10. speaker impedance: 32 ohmω 11. input charging standard dc 5v 12. sensitivity: 115±3 dbdb 13. bluetooth operating frequency: 2402-2480mhz 14. frequency response range: 20hz-20khz 15. maximum transmission distance: 10m 16. voice prompt: support 17. multi-point connection: not supported 18. wearing method: ear hook