The Denon DN-D4500 is a professional dual CD/MP3 player designed for DJs, offering a range of features for live performance and mixing. It supports playback of standard audio CDs and MP3 files up to 320 kbps from CD-R/RW discs, with CD Text and ID3 tag display on a dot matrix fluorescent screen. Each drive includes two seamless loops with B-point trim, two hot starts, cue stutter, and pitch control with selectable ranges from ±4% to ±100%. The unit also features key adjust to maintain pitch integrity, a brake effect, auto BPM counter, and shockproof memory—20 seconds for CDs and 100 seconds for MP3s. Additional functions include relay play with adjustable overlap, power-on playback, and up to 1,000 memo points for storing cue and loop data. The DN-D4500 is rack-mountable and includes a wired remote control for flexible setup in live environments.