The SOMO-II (SOund MOdule 2) is a tiny Audio-Sound module that can play MP3 audio files stored on a micro-SD card (or USB 2.0 Flash drive with extra components), such as voice and music. The SOMO-II features an on board 16bit MCU, specifically designed for hardware audio decoding. The SOMO-II supports both FAT16 and FAT32 formatted micro-SD and USB Flash Drives (not on board, requires external components) up to 32Gb in size, and features a 24-bit DAC output with support for all MP3 bit rates (11172-3 & ISO13813-3 3 Layer Audio Decoding) with 8-Khz to 48Khz Sampling Rate.