M18 is a low power Bluetooth design solution. It supports the latest Bluetooth 4.2 transmission, provides lossless twochannel stereo playback, and supports Bluetooth wireless transmission when the module is connected to a Bluetooth source. Key benefits Low power design suitable for battery powered devices, helping extend operating life. Lossless stereo playback with reliable wireless transmission to enable audio. Simple wireless streaming when connected to a Bluetooth source, reducing the need for additional wiring. Compatibility and range In an open environment, the Bluetooth connection distance can be up to 20 meters. Widely used for Bluetooth audio reception and a variety of audio DIY modifications. Compact design and performance Bluetooth V4.2 version, supports Bluetooth automatic connection technology. Decodes lossless WAV, WMA, FLAC, APE, and MP3 formats. Stereo twochannel output for clear, balanced sound. Use scenarios Upgrade a non Bluetooth home stereo or DIY speaker by adding a Bluetooth audio input to enable wireless streaming from phones, tablets, or computers. Create a compact Bluetooth audio receiver for small portable speakers, sound bars, or embedded audio projects. Integrate into DIY audio projects to enable wireless playback and automatic connection with Bluetooth sources, while keeping a simple, low power footprint.