General
Automix
Recording
Song History (with export to iTunes)
Live Undo/Redo
Over 100 keyboard shortcuts
iCloud integration
Audio waveforms display
Fullscreen mode
Album artwork on turntables
Pre-Cueing through headphones Learn more
Microphone input
Online radio broadcasting using Nicecast to Live365, Shoutcast, and Icecast
Real-Time Sampler with sample library
Multi-Touch Trackpad Support:
scratch, crossfade, move slider, scrub, nudge, pitch-bend, 2D FX Pad
Multi-lingual: English, German, French, Spanish, Japanese
Music Library
Seamless iTunes integration
Queue (on-the-fly playlist creation)
Browse library by:
playlist, artist, album, genre, key
As-you-type instant library searching
Supports all major audio formats:
MP3, AAC, AIFF, WAV, MOV, Audio-CD, and others
Supports songs purchased from the iTunes Store (also supports DRM protected songs, however, no recording or Audio Unit plug-ins supported with DRM)
Drag and Drop support for files stored on external hard drives or memory sticks

Audio
Automatic Beat & Tempo Detection
BPM-Sync (beat-matching)
Harmonic Match�: Automatic Key Detection, Key Matching and Transposing
Auto Gain
Pre-analyze entire library/playlists
Audio FX: Flanger, Phaser, Echo, Gate, Bit Crusher, Filter (High Pass, Low Pass)
Looping (Auto, Manual, Bounce)
Auto-Cut Scratching�
Tempo control (up to +-75%)
Key Lock/Time-Stretching (+-75%)
Pitch-Bend
Beat-synchronized scrubbing
3-band equalizer (-24 dB to +6 dB)
Adjustable crossfader curve
Automatic Transitions: Fade, Backspin, Brake, Reverse, Random
Multiple Cue Points
Reverse Playback and backspinning
Support for Audio Unit Effects

External Hardware
Supports external audio interfaces, headphones, and headsets for pre-cueing (USB or FireWire plug and play, custom channel assignment)
MIDI controller support:
native plug & play support and MIDI Learn

Requirements:Intel, Mac OS X 10.6.6 or later.

Version 4.0.3:

This update brings support for the popular Pioneer DDJ-ERGO DJ controller, as well as a number of enhancements and improvements:
Added support for Pioneer DDJ-ERGO MIDI Controller
Improved handling of iTunes XML library file not being found
Added keyboard shortcut for Match Key
Changed crossfader cutting shortcuts to F/G/H
Fixed jog off mode for Vestax Spin (press both jog mode buttons to activate)
Fixed VCI-100MK2 crossfader in cutting mode
Stability improvements