Hoco Graceful True Wireless Bluetooth Headset EQ4 Blue

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: 14mm.
6. Impedance: 32Ω ± 15%.
7. Frequency response: 20-20000Hz.
8. Sensitivity: 98dB ± 3dB.
9. Battery capacity: charging case 500mAh, headset 110mAh.
10. Charging case input: DC5V, Type-C.
11. Charging time: about 2 hours for charging case, about 1.5 hours for headset.
12. Talk / music time: 12 hours (80% volume). Standby time: 300 hours.
13. Air conduction technology. Hanging on ear design, opened ears.
14. Supports leader-follower switching, voice assistant activation, songs switching, songs play / pause.
15. Headset automatically turns on when taken out from the charging case, automatic pairing. Headset automatically turns off when placed into the charging case.
16. Sizes: 98 × 66.5 × 30mm.
17. Total weight: 87g. Single earbud weight: 10g.