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Bluetooth 4.2 DC5V Battery 12V Two Channel Audio Decoder Board Recording Radio Lyrics Display APE FLAC WMA WAV MP3

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                  Note:

                  5V power supply direction cannot be reversed, the wrong connection will burn the board

                  Bluetooth Name: Bluetooth
                  Support 32G memory card

                  Panel function button schematic:

                  Bluetooth 4.2 DC5V Battery 12V Two Channel Audio Decoder Board Recording Radio Lyrics Display APE FLAC WMA WAV MP3

                   
                   
                  1. LCD display: It can display the title of Chinese and English songs, copy the songs and corresponding lyrics files into the U disk at the same time, and display the lyrics of the played songs synchronously.
                  2. In USB/SD mode: Short press for playback pause key/Fm radio mode: Short press for automatic search station.
                  3. BT/USB/SD mode: Short press is the last song, long press is the volume reduction. / Fm radio mode: Short press is the last one, long press is the volume reduction. / AUX mode: Long press is the volume reduction.
                  4. USB/SD mode: Short click is optional for muffler or 10 + function. (Software should set two functions before shipment.)
                  5. BT/USB/SD mode: Short press for the next song and long press for volume plus/Fm mode: Short press for the next song and long press for volume plus/AUX mode: Long press for volume plus.
                  6. REC Recording Key: Press this key during USB/SD working hours to record the voice of MIC port. The length of recording depends on the capacity of the U disk or SD card used. Press this key when playing the music U disk with recording files, it can quickly cut to the recording file for playback, so that users can quickly find the recording files. (In AUX, USB/SD, FM, if any device of U disk and SD is plugged in, long press REC key for 2 seconds to start recording. In the recording process, short press REC key to end recording and play back the contents just recorded. If the user is listening to music in U/SD, he can quickly cut the recording file to play, such as the current recording file that the user listens to. Do not want to be able to clear the current REC recording file by pressing MODE key for 2 seconds in the process of playing the recording file, please be sure not to delete the content.
                  7. USB/SD boot-up defaults to full circular playback. Press this key to switch to single circular playback.
                  8. MODE key: Shortly press AUX/USB/SD/BT/FM to switch between several modes. / Press this key to delete the currently playing recording file when playing the recording file.
                  9. EQ key: When playing USB/SD music, press this key to switch between five kinds of EQ sound effects.
                  10. Receiver.
                  11. U-disk socket, supporting dual lossless format decoding APE, FLAC, WMA, WAV, MP3, etc.
                  12. SD card socket, supporting dual lossless format decoding APE, FLAC, WMA, WAV, MP3, etc.
                   
                  Circuit board pin header function diagram:

                  Bluetooth 4.2 DC5V Battery 12V Two Channel Audio Decoder Board Recording Radio Lyrics Display APE FLAC WMA WAV MP3

                   

                  1. Digital ground wire and analog ground wire: (when the independent transformer winding is powered, the ground wire is connected.) (when the battery box is used, the ground wire is separated.)
                  2. Mainboard power interface 5V, (pay attention to positive and negative poles do not connect back).
                  3. Left and right channel audio output.
                  4. AUX1 external signal input.
                  5. AUX2 external signal input.
                  6. 12V battery power display interface: (detection voltage below 5.8V battery symbol is not bright, 5.8V-9.5V first grid flashes, 9.5V-10.5V one grid is always bright, 10.5V-11.5V two grid is always bright, 11.5V or more three grid displays indicate full power, pay attention to the current design of the highest detection voltage should not exceed 22V); when the battery is below 8.5V, the machine has prompt users to give electricity. Battery charging can protect the battery from discharging. When the battery is less than 8.5V, the system automatically displays Undervoltage and stops working. If this product is not applied to the battery detection system, the default is working state.
                  7. Fm radio antenna interface.
                  8. MIC recording.
                  9. Operating function keys and remote control head external interface (this product has 8 keys with panel and receiver head, which need to be expanded).
                  10. Master Volume Encoder Interface.

                  Format Screen name Sample _ Channel Rate Description
                  MP3 .mp3 . mp2 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 32kbps-384kbps MPEG1/2/2.5 Layer II & III, CBR & VBR
                  WHA (standard) .wma .asf .wmv 8/11.025/16/22.05/32/44.1/48KHz 1 or 2 0kbps-320kbps WMA standard 4/4.1/7/8/9/9.1, CBR & VBR
                  PCM (raw) .wav .aif .aiff 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 64kbps-3072kbps Signed 8/12/16/24/32 bit integer (little endian)
                  PCM (u-law, A-law) .wav .aif .aifc 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 64kbps-768kbps Compressed PCM
                  IMA-ADPCM .wav .aif .aifc 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 32kbps-384kbps Container format: Microsoft WAVE
                  AAC-LC .m4a .aac .mp4 .mov 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 All bitrates allowed MPEG2/4 AAC LC profile
                  HE-AAC vl (eAAC or AAC+) .m4a .aac .mp4 .mov 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 All bitrates allowed ISO/IEC 14496-3:2001/Amd 1:2003
                  Available under certain conditions due to its high MIPS and RAM usage
                  HE-AAC v2 (eAAC+ or AAC++)
                  WAV                  		 .m4a .aac .mp4 .mov 8/11.025/12/16/22.05/24/32/44.1/48KHz 1 or 2 All bitrates allowed ISO/IEC 14496-3:2001/Amd 1:2003
                  Available under certain conditions due to its high MIPS and RAM usage
                  Bitstream is decoded as HE-AAC v1 only
                  FLAG* APE .flac .ape 8/16/22.05/24/32/44.1/48KHz 1 or 2 All bitrates allowed Supports subset format only
                  PCM bit width allowed: 8/12/16/20/24 bits

                  Package includes:

                  1 x Audio Decoder Board
                  1 x Remote Control

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