1. Bluetooth version: V5.3 Jayli AD6973D4 2. Support protocol: HSP, HFP, A2DP, AVRCP 3. Call time: 9H 4. Playing time: 8H 5. Charging time: 1H 6. Charging warehouse capacity: 300mAh 7. Capital battery capacity: 45mAh 8. The best call distance: about 1m 9. Maximum transmission distance: about 10m 10. Support voice prompt 11. Sensitivity: 94db 12. Veter diameter: 10mm 13. Frequency response range: 20H-20KHZ 14. The appearance is novel, the surface sprayed metal paint charging warehouse is cool and colorful breathing lights
