Bluetooth audio receiver dashboard decoder board lossless wireless stereo music module Instrucciones: the power is, the blue indicator will start and enter the Bluetooth mode; the English "Bluetooth device to match" shows that the Bluetooth mode has been input and waiting for matching. "XY" - UBT "mobile phone search" Bluetooth "is the device name on the decoding board. Click Connect, and the decoding board displays" Bluetooth device connection is normal ", indicating that the decoding board and mobile phone are connected normally, He can play music. As shown in the image below; Features: USB supplies Universal 5V power micro USB Supply pad 3.7-5v Conversion of 3.7-5v lithium battery pack LED indicator Bluetooth mode blue light long 3.5mm stereo interface 3.5mm standard interface, audio output source, plug, headset, amplifier and other devices Power Supply 3.7-5V SNR 90dB +N -70dB Crosstalk -86dB DNR 91dB Support A2DP/AVCTP/AVDTP/AVRCP/HFP LOS >15m SIZE30mm*30mm Package: Audio receiving module x1