Item is in excellent condition, fully tested and in working order. It has a couple of small marks but hardly visible. Comes with original box and power supply. 

The Akai U400 is a sampler looper that allows users to record phrases and slow them down or loop them without changing the pitch, making it a useful tool for learning musical parts or transcribing solos. It features advanced Digital Signal Processing (DSP) and timestretching technology, enabling users to sample musical phrases up to 35.7 seconds long and adjust playback speed while maintaining the original pitch.