FN-BT91 Bluetooth Audio Player Module
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By attaching a speaker to this module, you have in essence a Bluetooth linked speaker for your phone.
Allows for connection via Bluetooth with your phone. Then play music or sound from your phone via Bluetooth to this audio player
Built-in a high quality audio decoder that can decode MP3, WAV, WMA, FLAC, AAC, and APE.
With an on-board 3W mono amplifier that can directly drive a 4ohms/8ohms 3 Watts speaker.
24-bit DAC output and supports dynamic range 90dB and SNR 85dB.
Equipped with a 3.5mm headphone jack that is able to connect with a headphone or an external amplifier.
Uses micro SD card and USB flash disk for the storage devices.
Supports max. 128GB micro SD card and max.128GB USB flash disk.
Automatically plays audio files from micro SD card or USB flash disk when it is powered on.
4 function buttons “Prev/V-”, “Next/V+”, “Play/Pause” and “Mode”.
Power-off memory function.
Can work with an IR remote control (IR remote control NOT included)
Supports UART serial control mode.
3.3-5V DC power input.
30 levels adjustable volume, and 5 levels adjustable EQ.
Superior sound quality and easy wiring.
Adopts Bluetooth 4.2 communication technology.
PCB size: 60mmx40mm.
MP3 format: Supports 11172-3 and ISO13813-3 layer3 audio decoding
Supports sampling rate: (KHZ): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
Supports: Normal, Jazz, Classic, Pop, Rock, etc. USB Interface Standard USB 2.0
UART Interface: Standard serial port and 3.3V TTL level
Working Voltage: 3.3V-5V (A diode is suggested to be attached after 7805)
Rated Current: 10mA (quiescent state)
Amplifier Power: 3 Watts
Work Temp: -40~+80°C
Humidity: 5% ~95%