Bluetooth Protocal: Version 1.1

2.4GHz wireless Bluetooth frequency

Operation Distance: Up to 10 meters

Safety, Low radiation level

No Line-of-sight problem

Lightweight and comfortable, can be used with Bluetooth enabled mobile phones and all other Bluetooth enabled products with audio and speech features

Can listen to music, use as an internet phone etc (May require our Bluetooth dongle)

Internal battery: standby time 100 hours talking time 3 hours.