1. BT version: v5.4. Chip: AC6973D4.
2. Supported protocols: Headset, Hands-free, A2DP, AVRCP.
3. Transmission distance: 10m.
4. Transmission frequency: 2.4GHz.
5. Speaker unit: 9mm.
6. Impedance: 32Ω ± 15%.
7. Frequency response: 20-20000Hz.
8. Sensitivity: 98dB ± 3dB.
9. Battery capacity: charging case 300mAh, headset 35mAh.
10. Charging case input: DC5V, Type-C.
11. Charging time: about 1.5 hours for charging case, about 1 hour for headset.
12. Talk / music time: 6 hours (80% volume). Total working time: 27 hours.
13. Mini donut design, with silicone protective case and lanyard. Breathing ambiance light effect. Serves as both an headset and a fashion accessory.
14. Supports leader-follower switching, voice assistant activation, songs switching, songs play / pause.
15. Headset automatically turns on when taken out from charging case, automatic pairing. Headset automatically turns off when inserted into charging case.
16. Battery display: supports for iP phones and some Android phones.
17. Sizes: 55 × 56 × 20mm.
18. Total weight: 32.2g. Single earbud weight: 3.5g.