Chip: ISSC
1. Drive: 40 mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v4.1 + EDR
4. Power Level: CLASS II
5. Output Power: 30mW
6. Bluetooth distance: 10 meters barrier
7. Frequency response: 20-20000 Hz
8. Operating voltage range: 3.0V-4.2V
9. Microphone sensitivity: -42dB
10.Dimensions: Diameter length 20MM. Width 15MM. 18mm high
11.Weight about 8g
12.Talk time About 4 hours
13.Music for about 3 hours
14.The standby time is about10 days
Packing Included:
1X USB cable ,
1X headset
User Manual