Awei Dual Dynamic Drive Earbuds With Power Indicator.

Product name: awei t21p tws sports earbuds >2. bluetooth version: 5.1 >3. support protocol: hsp, hfp, a2dp, avrcp >4. talk time: 4h >5. play time: 3.5h >6. standby time: 300h >7. charging time: 1.5h >8. battery capacity of single earbud: 45mah >9. battery capacity of charging case: 390mah >10.input charging standard: dc5v >11. best transmission distance: 1m >12. maximum transmission distance: 10m >13. voice prompt: support >14. impedance: 16ω±15% >15. sensitivity: 93db >16. frequency response range: 20hz-20000hz >17. double horns: φ6mm/16ωwt0606*2 >18. multipoint connection: nonsupport >19. wearing style: in-ear >20.included accessories: usb cable, user manual