This is a medical device, so only the accessories are included, not the main unit. There is a manual, but no gel is included. I purchased it on Mercari in 2019. I used it several times during my pregnancy when I was feeling anxious. I have confirmed that it works without any problems (checked on 2026/2/8). The box and manual have some damage. The accessories don't appear to have any noticeable scratches or stains, but since they are several years old, I've marked them as having some minor scratches and stains. Please understand that these items have been stored by a private individual, and I appreciate your purchase.