Traktor (previously known as Traktor DJ Studio) is a DJ software package developed by Native Instruments. The most recent version, Traktor Pro, offers looping, effects, automatic beat-gridding of tracks, beat detection and Sync Lock for automatic synchronization of tracks, key detection, a 4-channel mixer, emulating the Xone:92 4-band EQ and filters by Allen & Heath and five other equalizer models, real-time track management with incremental search, artwork browsing, iPod and iTunes compatibility, automatic gain control, integrated recorder supporting internal and external audio input, support for multiple MIDI controllers and advanced MIDI assignments, as well as the syncing of external gear through MIDI clock functionality. Traktor is also used as a "sub-brand" for several of Native Instrument's associated hardware products.