This is an item for sale without the main unit. If you'd like, I can include some extra jelly. Purchased in 2019, and used a few times in 2019 and 2025. I will disinfect everything before shipping, but the box has some stains. Please check the details and understand before purchasing. There is no instruction manual, but you can find instructions on the back. It's easy to use. Pink fetal doppler for pregnant women, with headphones. - Model Name: JPD-100S - Brand Name: AngelSounds - Color: Pink - Included items: Headphones, cable Thank you for looking.