This is a mini-sized training device that automatically performs exercises by attaching it to areas of concern such as your arms and thighs using EMS (Electrical Muscle Stimulation). The outer box shows some age, but it is unused. Fit Care Exercise Series EMS Muscle Pack Mini MG MEM2-CBBK Contents Main unit, storage board, 2 button batteries, instruction manual Size: Approximately 20 x 5.5 cm ●The outer box shows some age, but the condition is relatively good. ●It appeared to be unopened, but I have taken it out of the box for inspection and to show you the product. All parts are present, and the adhesive sheets are included. There are no visible issues. ●Therefore, the operation has not been confirmed. I am not in a hurry, so when you purchase, I recommend confirming the operation before leaving a review. ●I am also selling another one. I can combine shipping for multiple purchases. (Sorry if it's already sold out.) ●About shipping It will be shipped waterproofed. The shipping method may be changed. (Rakuraku Mercari便 ↔ YuYu Mercari便) Also, please forgive me for reusing packaging materials such as boxes and envelopes for hygiene, functionality, and personal information reasons. If this is inconvenient or you have any requests, please do not hesitate to let me know. Thank you for looking.