Specifications:
Main MPU:CSRBC5MM
Wireless Specification
Bluetooth version :2.1+ EDR
Bluetooth frequency range 2.402-2.480GHz
Effective range Up to 10 meters ( 30 feets )
Bluetooth profile support A2DP，SBC， MP3 and AAC，CLASS 2
Multipoint HFP connection to 2 phones
Current ConsumptionOperational - Less than 18 mA (active)
Dimensions 50*24*8.5mm
Inner Li-battery 100mA

Package Contents:
Bluetooth Adapter
USB Cable
User Manual