VocoPro Karaoke System (HEROREC) includes Two wired mics Multi-Format Disc Player & USB Port/SD Card Slot for Easy Access to Digital Media Files SD player and recorder can capture and playback live performances and practice sessions DSP Reverb, Echo Effects and Hiss Filter AM/FM Radio Tuner with 20 Programmable Station Presets 2 Wireless Receiver Slots on Rear Panel Available for Adding Up to 2 Wireless VHF Modules for a Total of 4 Wireless Microphones* 120V/240V and NTSC/PAL Compatible for Worldwide Use 7-Band Equalizer with On/Off Switch 13 Step Digital Key Controller 120W Stereo 4-Speaker System with External Speaker Jacks 4 XLR / 1/4" Combo Inputs for Microphones or Instruments