Sale-points:
* Wireless Bluetooth input function
* Audio input function
* Support external TF card(optional)
* Phone calling hand free function
* Built in antenna
* Color: black, red, blue, silver
Specifications:
* Bluetooth version: V3.0
* Frenquency: 2.402-2.480GHz
* Transmission range: 10m
* UART Data Transmission Rate:115200bps
* 3.5mm audio input; MIC Sensitivity:-32db
* Receive Sensitivity:Better than -82dBm
* Data Transmission:Up to 3Mbps
* Charing Voltage: DC4.8V~5.2V
* Working Voltage:3.7V~4.2V DC
* Working Current: 200mA; Quiescent Current:>1μA
* Max output power : 3W
* Built-in Power : Li-ion Battery 3.7V/450mAh