MH-M18 Bluetooth 4.2 Decoder Board Audio Receiver BT4.2
The Bluetooth 4.2 Decoder Board Audio Receiver BT4.2 enables seamless wireless audio streaming by supporting Bluetooth 4.2 and various lossless formats, all within a compact form factor.
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.
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