Yamato DF505 pedometer, white model with health management functions. - Brand: Yamato - Model: DF505 - Functions: Pedometer, health check - Battery: CR2032 - Color: White The following information is based on a Google search. Please use it as a reference when looking up how to use the product, etc. Functions: It has both a pedometer and a body fat scale function. Features: It is characterized by the ability to easily measure body fat percentage during walking. Product name: Model number DF505 can be confirmed. Thank you for viewing. Although there is no box or instruction manual, I have inserted a new battery, adjusted the time, and confirmed that it is working. Please check the images and understand that this is a used item.