EQ22 Singer, TWS headset, ANC and ENC noise reduction, BT v5.4, charging case battery 400mAh, headset battery 40mAh, 35 hours of use, LED digital display

1. BT version: v5.4. Chip: AC7003.
2. Supported protocols: Headset, Hands-free, A2DP, AVRCP.
3. Transmission distance: 10m.
4. Transmission frequency: 2402-2480MHz.
5. Speaker unit: 10mm.
6. Impedance: 32Ω ± 15%.
7. Frequency response: 20-20000Hz.
8. Sensitivity: 98dB ± 3dB.
9. Battery capacity: charging case 400mAh, headset 40mAh.
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: 7 hours (80% volume, ANC off), 6 hours (80% volume, ANC on). Total working time: 35 hours (ANC off), 30 hours (ANC on).
13. ANC and ENC 4 microphones noise reduction. Supports connection to 2 phones.
14. LED digital display of power level.
15. Battery display: supports for iP phones and some Android phones.
16. Supports leader-follower switching, voice assistant activation, songs switching, songs play / pause.
17. Headset automatically turns on when taken out from the charging case, automatic pairing. Headset automatically turns off when placed into the charging case.
18. Sizes: 59.5 × 46.5 × 28mm.
19. Total weight: 46.5g. Single earbud weight: 3.6g.