* Bluetooth Specification v2.0+EDR class 2 
* RF Frequency Range: 2.402-2.480GHZ, 2.4G ISM band
* Radio Performance: Receive Sensitivity of -90dBm, TX Power Max 4dBm
* Supports Bluetooth Headset and Hands-free profiles 
* Speaker volume gain control
* 3 Button design: MFB, VOL+, VOL-,
* LED Indicator Status: Blue, Red
* Rechargeable 80mAh Li-Polymer Battery 
* 2.5mm DC Plug charging Port
* Charger adapter Output: DC 5V&200mA
* Nominal charging time: Max 1.5 hours 
* Talk time: Up to 3 hours
* Standby time: Up to 70 hours 
* Dimensions (main body): 48.8(L) x16(W) x 10.3(H) mm 
* Weight: 7.6 grams 
* Operating Temperature: -10 ^oC¡«50^oC
* Storage Temperature: -20 ^oC¡«80^oC