awei T79ENC 2 Pairs ENC Wireless BT 5.3 Earphones

1. Bluetooth version: 5.3 (AD6973D4)
2. Channel: Stereo
3. Supported protocols: a2dpavctpavdtpavrcphfp
4. Music playback time: 5h
5. Talk time: 4h
6. Headphone battery capacity: 30mAH (without protection board, headphone board lithium battery protection IC), Storage battery capacity: 500MAH (with protection board)
7. Charging time: 2h
8. Speaker: 13mm
9. Standby time: 300h
10. Speaker sensitivity: 114DB+-3DB
11. Input charging standard: DC 5V
12. Bluetooth operating frequency: 2.402GHz-2.480GHz
13. Maximum transmission distance: 10m
14. Voice prompt: supported
15. Multipoint connection: not supported
16. Wearing style: In-ear / semi-in-ear