Built-in USB/SD Card Readers - Power On/Off with Red LED Indicator - Phono/AUX Volume Input Control - Removable AC Power Cord * FM Tuner with EQ/Volume Control - Master Volume Rotary Control - Mic 1/Mic 2 Volume Controls - Un-Switched AC Power Outlet for Optional Equipment * Media Mode Selector Function - High/Mid/Low Tone Level Controls - Mic 1 /Mic 2/AUX-IN 6.35mm/ 0.25-Inch Input Connectors - Built in Retractable Antenna for FM Tuner * 4-Ohm/8-Ohm - 70 Volt/100 Volt Speaker Outputs Terminals - Front 3.5mm AUX Input Jack for iPod/MP3 Players - AUX-IN RCA Input Jack * Tuner Down/Up/Scan Button Functions - MIC 1 Talk-Over Feature - Voltage Selector 110/220V