2.Bluetooth Specification: v4.0

3.Voltage:  DC3.3V-4.2V

4.Bluetooth protocol:  HFP V1.6/A2DP V1.2/AVRCP V1.4/HSP V1.2

5.Working Current:  ≤30mA

6.Standby Current:  <50uA

7.Temperature range: -40 Celsius ~ +80 Celsius

8.Wireless transmission range: > 10m

9.Transmission power: CLASS1/CLASS2/CLASS3,9dbm(MAX)

10.Sensitivity:  -80dBm<0.1%BER

11.Frequency Range: 2.4GHZ ~ 2.480GHZ

12.External Interface:  PIO

13.Audio Performance:  AAC/MP3/SBC/APTX

14.Audio SNR:  ≥75dB