HOCO EQ22 Singer True Wireless Bluetooth Earphones ANC+ENC noise reduction + Display Black

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.