DIY Assembly Kit , Do it by your self.Replace your damaged parts.Bluetooth version: bluetooch V4.2Support Bluetooth protocol: HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2, AVDTPV1.2Format support: Support WAV/WMA/FLAC/APE/MP3 lossless decoding, stereo two-channel outputOperating Voltage: 5V/3.7V-4.2VBroadcast status not connected: 5.5MAConnection working status: 20MADeep sleeping: 3UATransmission distance: 20 meters (empty or low interference environment)Operating temperature: -40°C to +85°CSensitivity: -87dbmPin header1 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 ground5 L Left channel output6 R Right channel outputFunction 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 and can play music after connecting Bluetooth.Package includes:1 x M18 Module
