Model: LB21
1. Bluetooth Version: V5.3
2. Transmission distance: >10M
3. Output Voltage: 3.7V-4.2V
4. Output power: 5w*1
5. Input: 5.0V
6. Loud speaker: 5W*1
7. Frequency Response: 100Hz–20KHz
8. Output distortion rate: ≤0.5%
9. Battery: 1200mAH
10. Material: ABS

Function: Handfree call, Support TF/USB card/Aux in/FM, TWS connect.