VHM-314 no button/with button

1.Parameter characteristics Power Supply 3.7-5VSNR 90dBTHD+N -70dBCrosstalk -86dBDNR 91dBSupport Profile A2DP/AVCTP/AVDTP/AVRCP/HFPLOS >15m2.Interface details USB powered Universal Micro USB 5V power supply3.7-5V Supply Pad External 3.7-5V lithium battery power conversionLED indicator Bluetooth mode long blue light3.5mm stereo audio interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices Instructions:After the power is turned on, the blue indicator lights up and enters the Bluetooth mode; the English “The bluetooth device is ready to pair” is displayed, indicating that the Bluetooth mode is entered and waiting for pairing; the “XY_BT” searched by the mobile phone Bluetooth is the device name of the decoding board. , Click on the connection, the decoder board prompts "The bluetooth device is connected successfully", indicating that the decoder board and the mobile phone are connected successfully, you can play music.