M18 bluetooth 4.2 Audio Receiver Module Lossless Car Speaker Headphone Amplifier Board Wireless Refit

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For different needs of customers, we offer 3 versions for you to choose from:

Function / Model	M18 (this item)	M28 (Product ID: 1486747)	M38 (Product ID: 1486746)
Micro power supply	×	√	√
Audio headphone jack	×	√	×
Built-in amplifier	×	×	√(5W+5W)
Lithium battery powered	√	√	√
Support USB sound card, free drive	×	×	√
Volume memory/adjustment	√	×	×
MUTE mute interface	√	×	×
Button extension	√	×	×
Bluetooth version	bluetooch V4.2
Support Bluetooth protocol	HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2, AVDTPV1.2
Format support	Support WAV/WMA/FLAC/APE/MP3 lossless decoding, stereo two-channel output
Operating Voltage	5V/3.7V-4.2V
Broadcast status not connected	5.5MA
Connection working status	20MA
Deep sleeping	3UA
Transmission distance	20 meters (empty or low interference environment)
Operating temperature	-40°C to +85°C
Sensitivity	-87dbm

Introduction:

 

This product MH-M18 is a low-power Bluetooth design solution, supporting the latest Bluetooth 4.2 transmission, two-channel stereo lossless playback, Bluetooth connection after the module is connected to Bluetooth, very convenient. In an open environment, the Bluetooth connection distance can be up to 20 meters.

Widely used in a variety of Bluetooth audio reception, a variety of audio DIY modification.

Pin	Function	Description
1	KEY	Button control terminal (4 button functions, additional resistors such as wiring diagram)
2	MUTE	Mute control terminal (output high level 3.3V when muting, output low level during playback)
3	VCC	Positive power supply 5V (lithium battery 3.7V power supply requires short circuit diode)
4	GND	Power negative / audio signal ground
5	L	Left channel output
6	R	Right channel output

Function Description:

 

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

After the module is powered on, the mobile phone searches for the Bluetooth name MH-M18/MH-M28/MH-M38, and can play music after connecting Bluetooth.

 

Package includes:

1 x M18 Module