Pioneer DJM-909 Battle Mixer W/Effects The 2 Channel DJM-909 boasts awesome touch screen effects, fader effects, fader start, transform switch and Auto BPM Counter. 50 built in effects (3 banks of 3 effects for each channel can be pre selected) with up to 14 different parameters for each effect. Effects can be assigned to either volume fader or cross fader and effect's parameter can controlled or varied simply by moving the faders. Optical Cross fader with adjustable curve/lag control, adjustable tension control and cross fader reverse. Full compliment of input and output jacks including "session" ins and outs for serious battles.