Arduino MP3 Player Shield is pulg and play shield compatible with Arduino boards. It supports both wav and mp3 formats. Both SD card and U-disk are supported directly. Also there is an on-board 64Mbit flash which could store music files. The board can be controlled by serial UART interface or keys onboard. The board can directly drive a 32Ω headset and it has an amplifier to drive 3W/4Ω external loudspeakers.
Arduino MP3 Player Shield - General Specifications
Plug in and play for Arduino
Control by Serial UART interface or keys onboard
Directly drive 32ohm headset
On-board Audio Amplifier to drive 3W/4Ω external loudspeaker
32 levels adjustable volume
Support FAT16/FAT32 file system
Support both SD/SDHC card and U-Disk
On board 64MBit SPI-FLASH
Support copying audio files from SD card or U-Disk to SPI-FLASH
Supporting Sleep Mode
Support 16K~320Kbps MP3 files and 8K~44.1KHz sampling rate WAV files (SPI-FLASH only supports MP3 format)
Arduino MP3 Player Shield - Technical Specifications