The American Audio Radius 3000 is designed for DJs who can make use of a CD/MP3/WAV player with MIDI capabilities. No matter if you mix music on CDs or are a computer-based DJ, this media player is an incredible tool for launching your musicianship to the next level. This professional CD/MP3/WAV audio player with MIDI capabilities allows DJs to control their favorite music playback software. The American Audio Radius 3000 features a large 6" jog wheel, 9 onboard DSP (digital signal processor) effects, and a large bright display that shows track titles and artist ID tags. The Radius 3000 has a white LED visual marker display that rotates around the jog wheel to show the reference point of where the CD/MP3/WAV disc is playing. The American Audio Radius 3000 media player also offers features only found on the highest quality CD Players, such as: a slot-load CD drive, quick CD/MP3/WAV disc recognition, SD card and USB inputs, advanced track search (search for a new track while one is playing), 10 seconds of anti-shock memory, seamless loop, 3 flash start buttons, a digital BPM (beats per minute) counter, and digital output (S/PDIF).Plays MP3, WAV, CD, and CDR discs (supports most WAV files (PCM 1411 Kbps); may not be compatible with 1411.2 Kbps WAV files) Includes SD card and USB inputs for additional music playback sources (such as SD, SDHC, and USB hard drives) Improved database builder for USB drives: Sort your music by title, artist, album or genre in alphabetical order (ID3 tag info) MIDI software compatible through USB (control up to 8 MIDI channels at once) Display shows track titles and artists from ID tags when played Advanced cueing with track searching by frame (not by the second) Quick MP3/CD recognition Track and folder search Advanced track search: search for a new track while one is playing PowerTouch advanced digital scratching (with adjustable sensitivity) 2 Scratching modes: digital scratch mode and beat juggle mode Tempo lock Instant start 9 onboard effects: scratch, filter, echo, trans, skid, phase, flanger, pan, and bop 6" jog wheel with LED cue marker and adjustable LED effects 3-mode jog wheel: normal, scratch, and auto cue scratch (great for beat juggling) Time and ratio adjustment for digital effects Effects sync adjustment White LED visual marker display: reference point to view where the disc is playing Digital BPM counter: keeps digital effects in sync with the music TAP button for manual BPM Anti shock (10 seconds) Smart loop: automatically measures your loop Fader "Q" start Independently adjustable pitch bend (up to 100%) Sleep mode (adjustable in increments of 5 minutes up to 120 minutes) 3 flash start buttons with a 5-second sample per button Recall memory of Q-start and samples Store up to 1500 cue points Digital output (S/PDIF) Headphone jack on rear with volume control Slot load CD drive Flip flop: relays playback between 2 Radius 3000 CD/MP3 players Built-in MIDI output and input remapping Change device name (Radius 3000 A-H) for easy setup Link mode: gives the user the ability to plug in a USB hard drive into one Radius 3000 yet operate it from additional USB-linked Radius 3000 players (up to additional 2 units) Dimensions: 4.25"H x 14"W x 10.5"D Weight: 8 lb.