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Electronic Module M18 Bluetooth 4.2 Audio Receiver Module Lossless Car Speaker Headphone Amplifier Board Wireless Refit 10pcs


Price: $68.21
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Product description

User Manual: Click here to open
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, s


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