Feamos Hi-Q Remote Music Speaker USB MP3 Decoder Decoding Board Wireless Audio Module configure the production of simple sound, controllable players, home appliances, industrial applications. upgrading the ordinary the acoustics, so the acoustics can play MP3 files within the U disk and within the SD card easily. in conjunction with other modules, circuits, equipment, secondary development application, used in toys, gifts, fitness equipment, household appliances, broadcasting systems. Specification - Decoding board size: 10.8 * 2.5 * 3cm; Remote Dimensions: 8.5 * 4 * 0.5cm; Power Supply: DC 5V Details - please check the description below