Product Parameters

Product Name: Bluetooth Audio Amplifier Module

Working voltage: DC3.7~5V

Output power: 5W * 2

Output load: 4 Ω 5W horn

Product Descriptions

This product is a low-power Bluetooth design solution that supports the latest Bluetooth 4.2 transmission and lossless dual channel stereo playback. After the module is connected to Bluetooth, it can quickly achieve Bluetooth wireless transmission, which is very convenient. In an open environment, the Bluetooth connection distance can reach up to 20 meters.

Widely used in various Bluetooth audio receivers, DIY modification of various audio systems, and can also be used as a USB sound card, plug and play, convenient and fast.

Product Features

供电方式 Power supply mode	1.Micro USB 供电。2.锂电池供电 1. Powered by Micro USB. 2. Powered by lithium batteries
工作电压 Working voltage	5V(Micro USB)/3.7V~4.2V(锂电池) 5V (Micro USB)/3.7V~4.2V (lithium battery)
未连接状态下的电流(LED 闪烁状态) Current in unconnected state (LED flashing state)	27mA~35mA
连接成功后工作电流(LED 常高状态) Working current after successful connection (LED constant high state)	13mA~18mA
内置功放 Built in amplifier	5W+5W
蓝牙版本 Bluetooth version	Bluetooch V4.2
支持音频格式 Supports audio formats	支持 WAW/WLA/FLAC/APE/MP3无损解码，立体双声道 Support WAW/WLA/FLAC/APE/MP3 lossless decoding, stereo dual channel
传输距离 Transmission distance	20米(空旷或者干扰低环境下) 20 meters (in open or low disturbance environments)
USB 声卡、免驱动 USB sound card, driver free	支持 Support

Bluetooth V4.2 version, supports Bluetooth automatic reconnection technology, supports WAV/WMA/FLAC/APE/MP3 lossless decoding, and stereo dual channel output.

After the module is powered on, the phone can search for the Bluetooth name HW Audio and connect to Bluetooth to play music;

Module blue indicator light:

When Bluetooth is not connected, the indicator light flashes rapidly;

When Bluetooth is connected, the indicator light stays on;

When Bluetooth is playing, the indicator light flashes slowly.

1. Power supply: It can be directly powered by a MICRO USB Android cable with 5V, or an additional 5V power supply or 3.7V lithium battery can be connected (as shown in the figure below). Note that the power supply interfaces for 5V and 3.7V are different. 5V is connected to 5V and GND, while 3.7V lithium batteries are connected to VBAT and GND. The maximum working current is 5V2A. It is recommended to use a 5V2A regulated power supply for better sound quality.

2. Supports USB sound card, driver free (plug and play). Connect the module to the computer using a USB cable, and the computer can play music through the amplifier output of this module

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