Specifications:
1) Class II
2) Slight and beautiful outlook
3) Supports Bluetooth TM 1.1
4) Frequency: 2.4GHz ISM band
5) Access range: 10m (30 feet)
6) Transmission power: 4dBm (typical 2dBm)
7) Sensitivity: -84dBm
8) Battery: lithium polymer
9) Clear and soft voice quality
10) Fits for your left / right ears by rotating the clamp
11) Dimensions: 60.5 x 19.5 x 10mm
12) Weight: 12g
13) Using time: standby 300h, talk 6h
14) Colors: different colors