1.Bluetooth standards: V5.0 

2.Effective range:10m

3.Working time:Music: Up to 5 hours;

                      Talk: Up to 5 hours

4.Standby time:Up to 200 hours 

5.Battery Capacity: 250mAh

6.Charging time:Approx 2 hours 

7.Microphone: Bulid-in

8.Accessories: USB cable

9.Driver Unit: 40mm

10.Impedance: 32ohm

11. Sensitivity : 105dB ±3dB

12.Frequency Response : 20Hz - 20KHz