MH-M18 Bluetooth 4.2 Decoder Board Audio Receiver BT4.2

From the shop's description

MH-M18 Bluetooth 4.2 Decoder Board Audio Receiver BT4.2 The Bluetooth 4.2 Decoder Board Audio Receiver BT4.2 is a compact and efficient solution for adding Bluetooth audio streaming capabilities to various audio systems. Supporting Bluetooth 4.2, it ensures reliable wireless transmission with a range of up to 20 meters. The module supports multiple audio formats, including WAV, WMA, FLAC, APE, and MP3, delivering stereo two-channel output for high-quality sound reproduction. Its low power consumption and small form factor make it ideal for integration into DIY audio projects, portable speakers, and car audio systems. Features Bluetooth 4.2 technology for stable and efficient wireless audio streaming. Supports lossless audio formats: WAV, WMA, FLAC, APE, and MP3. Stereo two-channel output for high-quality sound. Compact design with dimensions of 23mm × 16.5mm × 3mm. Low power consumption with a maximum operating current of 20mA. Operating voltage range of 3.7V to 5V DC. Transmission distance of up to 20 meters in open environments. Operating temperature range from -40°C to 85°C. Sensitivity of -87dBm for reliable signal reception. Supports Bluetooth protocols: HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2, AVDTPV1.2. Specifications Parameter Value Model MH-M18 Bluetooth Version 4.2 Operating Voltage 3.7V–5VDC Max Operating Current 20mA Transmission Distance 20meters Operating Temperature -40°C to 85°C Sensitivity -87dBm Dimensions 23mm x 16.5mm x 3mm PINOUT Pin Function Description 1 KEY Button control terminal (4 button functions, additional resistors as shown in wiring diagram) 2 MUTE Mute control terminal (output high level 3.3V when muting, output low during playback) 3 VCC Positive power supply 5V (requires short circuit diode for 3.7V lithium battery) 4 GND Power negative / audio signal ground 5 L Left channel audio output 6 R Right channel audio output Applications Wireless audio streaming for speakers and amplifiers. Bluetooth music receiver for home audio systems. DIY audio projects and custom sound systems. Car Bluetooth adapter for hands-free audio. Portable speaker integration for wireless music playback. Embedded audio solutions in smart devices. Wireless headphone adapters for audio upgrades. Package Contents 1x Bluetooth 4.2 Decoder Board Audio Receiver BT4.2.