The CDJ-400 is a model in the CDJ-range from Pioneer Corporation

Pioneer Corporation

is a multinational corporation that specializes in digital entertainment products, based in Kawasaki, Kanagawa, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop...

 that was released in the late 2007. It is similar in size to the CDJ-200

CDJ-200

The CDJ-200 is the second cheapest model in the CDJ range of CD players, made by the Pioneer Corporation. It is similar in size to the CDJ-100S, however features are improved and added like MP3 playback capabilities and loop functions...

, but comes with scratching

Scratching

Scratching is a DJ or turntablist technique used to produce distinctive sounds by moving a vinyl record back and forth on a turntable while optionally manipulating the crossfader on a DJ mixer. While scratching is most commonly associated with hip hop music, since the late 1980s, it has been used...

 abilities and effects, can be used as a MIDI controller, as well as being Pioneer's first model to have a USB input with easy access on the top of the player. This makes it possible to play MP3 music from a USB memory stick.

On the back of the CDJ-400 is another USB connector that can be used to connect the CDJ-400 to a computer. This will enable the MIDI control possibilities so the player can be used to control various types of DJ mix software. The CDJ-400 has a built in USB sound card.

External links

• CDJ-400 at Pioneer
  Pioneer Corporation
  is a multinational corporation that specializes in digital entertainment products, based in Kawasaki, Kanagawa, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop...
  
  (UK) website.
• CDJ-400 at DJResource website.