Bluetooth Audio Receiver Board Module HW-770B

From the shop's description

Bluetooth Audio Receiver Board Module HW-770B MP3 Bluetooth decoding board, car speaker, audio amplifier board, modified DIY audio receiver module Main parameters: Bluetooth tooth decoding board DIY Supports Bluetooth 4.1, automatic reconnection function, WAV+APE+FLAC+MP3 lossless decoding, stereo output. Power Supply：3.7V-5V SNR：90dB THD+N：-70dB Crosstalk：-86d8 DNR：91dB Support Profle： A2DP/AVCTP/AVDTP/AVRCP/HFP L05：>15m Operating instructions: Using a USB cable for power supply, the pansy indicator light flashes and enters Bluetooth mode; When you hear the voice message “The Bluetooth device is ready to pair”, it means you have entered the dental mode and are waiting for the paired 3 phone to search for “-8T” (decoding device name), then click to connect. When you hear the voice message “The Bluetooth device is connected successfully”, it means that the decoding board has successfully connected to the phone. The blue indicator light remains on, and you can play music. At this time, the blue indicator light flashes. Function Introduction USB power supply: Universal Micro USB 5V power supply 3.7V-5V power supply pad: achieving external 3.7V-5V lithium battery power supply LED indicator light: Bluetooth mode, blue light on continuously 3.5mm Stereo Audio Interface: Standard 3.5mm interface for outputting stereo sound effects, can be inserted into headphones, connected to power amplifiers and other devices