1).Parameter characteristics

Power Supply 3.7-5V

SNR 90dB; THD+N -70dB; Crosstalk -86dB

DNR 91dB

Support Profile A2DP/AVCTP/AVDTP/AVRCP/HFP

LOS >15m

2)Micro USB 5V power supply

3.7-5V Supply Pad External 3.7-5V lithium battery power conversion

LED indicator Bluetooth mode long blue light

3.5mm stereo audio interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices