The SandPuppy Fitbelt is a wireless back pain relief device. Through variable heat, it soothes aching muscles and opens up your day to more possibilities. if that back spasm made it impossible to get anything done, the SandPuppy Fitbelt, with its safe and wireless heating will allow you to make the most of your day. Since the Fitbelt is wireless you can wear it on the go. #Fitbeltiton and forget about it. Ideal for people who want fatigue relief while having the freedom to move.