The Pioneer DJM-400 is a 2-channel professional DJ mixer. It has a 24 bit/96 kHz sampler that automatically notes the tempo of a track during playback and samples it for a 4 beat length and then loops the same. This Pioneer mixer stores five samples onboard for 12 seconds of sample time. For a high-quality sound, the effects are processed at 24 bits. In addition, it is equipped with a talk over function that lowers track volume so that the DJ can speak while the track is still on.