10 Buttons Triggered MP3 Player Board with 3W Amplifier and Terminal Block v2

Features: With terminal blocks for easy connections With high quality audio decoder, supports MP3 and WAV audio formats. Works with most Windows, Mac, and Linux systems Sampling rates supported: 8/11.025/12/16/22.05/24/32/44.1/48(KHz).  24 bit DAC output and supports dynamic range 90 dB and SNR 85dB. Supports one-on-one 10 button trigger control mode and RS232 serial port control mode.  In button control mode, it plays back 10 sounds one-on-one. Can play multiple sound files in random order per button Supports multiple messages per button Uses a built-in 8 MBytes(64 Mbits) SPI flash memory for storage. Supports Micro SD card as well (32GB max.) Load audio files to the flash memory directly via the micro USB connecting with computer like using a USB flash drive. The flash memory/micro SD card works as a USB flash drive on computer Equipped with a mono 3 watts amplifier that can drive a 1-3 watts (4-8 ohms) speaker directly Equipped with a 3.5mm audio jack for stereo output that can drive an earphone directly or connect with an external amplifier.  Supports signal of status change through the Busy output. Adjustable sound volume with the potentiometer.  DC 5V power input. Also possible to supply the power via the micro USB port. 5V power output available that can support power to an external device PCB size: 40mmx40mm  Technical Parameters: Working voltage: DC 5V Working current: ?1000mA Current at play status: ?300mA Standby current: ?10mA