The Akai X-200 D is a reel-to-reel tape recorder manufactured by Akai in the 1970s. It is a portable unit that is capable of recording and playing back audio on magnetic tapes. This model features a solid-state design and is equipped with two motors for precise tape movement. It has multiple speed options for different recording quality, and it supports both mono and stereo recording. The Akai X-200 D also includes features like a built-in speaker, microphone input, headphone output, and various audio controls for adjusting playback and recording levels.