2. Effective range: about 10 meters

3. Support system: Support all mobile phone with Bluetooth function

4. Battery for earphone: 30mAh

for charging box: 300mAh

5.Working time:Music: Up to 4 hours;

Talk: Up to 4 hours

6. Standby time:Up to 80 hours

7. Charging time:Approx 1 hours

8.Microphone: Build-in

9. Driver unit: 8mm

10.Rated input power. 2mW