VocoPro Soundman 80W 4 Channel Portable Sound System 5-band EQ easily adjusts the sound of your master output to suit your audio needsFour 1/4" microphone/instrument inputs Laptops Pitch Control for CD/CD+G player for adjusting playback speed of tracks Two microphones Built-in CD/CD+G player with pitch (speed) control for background music to sing or jam along to80W stereo 4-speaker system Digital Key Control for changing key of all source audio (CD/AUX/1/8")Convenient 1/8" Audio Input for Connecting MP3 players or