CD Player receiver, AM FM RDS Radio, plays USB drives loaded with MP3, WMA, & FLAC, premium 24-bit digital-to-analog converter (DAC), front USB port, front auxiliary 3.5mm, 4-channel preamp outputs (2-volt front and sub), built-in amplifier (18 watts RMS/50 peak x 4 chan), Auxiliary Input, Detachable Face, Equalizer, Smartphone Charging