I purchased this item at the time but couldn't utilize it much, so it has been used infrequently. [SL Thetape DX Sleep Learning Machine, Mitsui Kikaku] This is a product that reportedly sold 500,000 units during the Showa era. ⭐️Comes with the box. Includes warranty card. ⭐️Pillow cover has been washed. ⭐️Power confirmed (Image 5) *The green light is difficult to see, but it is on. *Image 4 shows the "Endless Tape (Invitation to Sleep Learning)" and "How to Sleep Learn and How to Make Teaching Material Tapes." *The sound is low, but it is designed not to be loud so it can be listened to during sleep. *This is a hard-to-find item, so please consider this opportunity.