This tiny bluetooth is as light as 8 gram only. It can be hang on left or right ear easily and enjoy the conversation conveniently. It's compatible with any bluetooth enabled cell phones. Have it for save driving!

Bluetooth specification: v2.0 Class 2
Bluetooth profile Supported: Headset and Handsfree profile
Range of Frequency: 2.4GHz Spectrum
Talk time: up to 2 hours
Standby time: up to 72 hours
Nominal Charging Time: Within 3 hours