It runs off of 2 "AA" batteries, has an on/off switch, and three interchangeable heads, a massaging head, a scrubbing head and a brush (for applying lotions or soap I would assume) since I have never, personally used one !!!
This was in my Mom's stuff when she passed away !!! (she was an Avon rep for over 30 years)
Hope that helps !!! ( it also has an instruction sheet in the package )