※ The main unit is a medical device, so this listing is only for the accessories. ★ If you don't need the outer box, I can discount it to 3,750 yen. "Hear your baby's heartbeat and feel at ease" I purchased this new on Amazon in 2023, and after giving birth in January 2024, I lent it to a friend, who has now returned it. I am listing it because I have no further use for it. It is in beautiful condition and has been tested and confirmed to be working. The instruction manual etc. are also included. The batteries and gel are the ones that were used, and they are still usable, so I will include them as is, but please understand that they are not new. I think the gel is about 60-70% full. ★ The gel has been opened. If you are concerned, I will dispose of it, so please let me know in a message. ★ I will disinfect it before shipping, but please only purchase if you understand that it is a used item. ★ I plan to ship via Yu-Yu Mercari. ★ I will offer a significant discount if you don't need the box. ┏━⚠⚠︎⚠︎ Please read before purchasing ⚠︎⚠︎⚠━┓ • Please read my profile before purchasing. • Please refrain from purchasing if you are looking for perfection, as it is stored at home by a private individual. • The shipping method may be changed to the cheapest option. • If you have any concerns, please be sure to ask questions in the comments before purchasing.