Whether your playing MP3's up to high quality 320Kbps or standard audio CD's the DN-D4500 offers you two seamless loops with live B-trim editing for mixing perfection, two hot starts for instantly starting from your pre-determined point on a track, cue stutter, selectable pitch ranges from 4% to 100%, an adjustable brake effect and superb key adjust feature which keeps vocals and music sounding true even when you adjust the speed of the track.