DJs or disc jockeys are music professionals who remix popular songs for playing in discotheques, nightclubs, dance parties and other musical programs. Remixing songs involves modifying their beats, mixing the sound, altering the bass/treble effects, etc. DJs also juxtapose two or more songs together to create a new music piece. Naturally, all this creativity requires a lot of equipment.

The basic equipment needed by a DJ is a deck or CD player, sound mixers, speakers and headphones. Most DJs use LP records, which are played on turntables. The sound encoded on the record is read by a stylus. DJs use LPs as they can input scratching effects in the music. Turntables are of four popular styles