1. BT version: v5.3. Chip: AB5656.
2. Supported protocols: A2DP, AVRCP, HSP, HFP.
3. Transmission distance: 10m.
4. Transmission frequency: 2.4GHz.
5. Speaker unit: 40mm.
6. Impedance: 32Ω ± 15%.
7. Frequency response: 20-20000Hz.
8. Sensitivity: 98dB ± 3dB.
9. Battery capacity: 200mAh.
10. Charging input: DC5V, Type-C.
11. Charging time: 2 hours.
12. Talk / music time: 20 hours (80% volume). Standby time: 180 hours.
13. Lightweight, soft earmuffs, folding earcups, adjustable headband.
14. Supports songs switching, songs play / pause, volume adjustment.
15. Supports BT and AUX playback modes.
16. With microphone.
17. Accessories: Type-C charging cable × 1, AUX cable × 1.
18. Sizes: 178 × 172 × 63mm.
19. Weight: 109g.