1. BT version: v5.3. Chip: JL AC6973D4.
2. Supported protocols: Headset, Hands-free, A2DP, AVRCP.
3. Transmission distance: 10m.
4. Transmission frequency: 2.4Hz.
5. Speaker unit: 6mm.
6. Impedance: 32Ω ± 15%.
7. Frequency response: 20-20000Hz.
8. Sensitivity: 90dB ± 3dB.
9. Battery capacity: charging case 300mAh, headset 25mAh.
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: 3.5 hours (80% volume). Standby time: 150 hours.
13. LED colorful lighting effects.
14. Zinc alloy charging case, one hand simple opening.
15. Supports leader-follower switching, voice assistant activation, songs switching, songs play / pause.
16. Headset automatically turns on when the charging case cover is opened, automatic pairing. Headset automatically turns off when the charging case cover is closed with headset inside.
17. Battery display: supports for Apple phones and some Android phones.