Blue LED Screen for Media Playback Information - Blue LED Output Level Indicators - Compatible with More Audio/Computer Devices via 3.5mm To RCA Converter * Double Decoder Digital Media Function with Remote Control - Treble, Bass, and Master Volume Controls - 110/220 Voltage Selector * Built-in USB/SD Memory Card Readers - RCA Cable L/R Input - Dimensions: 7.48""W x 2.87""H x 5.39""D * Compatible with MP3/WMA Files - 3.5mm/1/8"" AUX Input Jack for iPod, iPhone, iPad, CD/MP3 Player * Power on Blue LED Circle Indicator - Four Push Type Speaker L/R Terminals