Specifications:
Standard: Bluetooth 4.0
Bluetooth protocol: A2DP, HSP, HFP
USB standard: USB 2.0
Output power: 0 ~ +4dBm
Receiving sensitivity: -75dB
Bluetooth rating: class 2
Transmission distance: 10M
Band: 2.4G ISM band
Connection: Piconet / Scatternet Support
Audio decoding: 16 bit code
Working voltage: 5V
Size: 33 x 16 x 6mm