VOCOPRO SDR-3000 Karaoke Player Records audio directly to SD card or USB drive via line in jacks Dual recorder design allows for independent recording/playback on each side Slim 1RU chassis 110V-220V compact Individual record level controls Delete recorded files directly from recorder Full-featured playback with single and repeat playback modes Individual RCA input/output jacks Mixed RCA output jacks with toggle switch Backlit buttons for use is low-light areas " headphone jack with volume control