Good to know  - This Homedics massager uses levels of vibration and percussion therapy to help you get rid of stiffness or tension - Its 6 intensity levels let you pick how gentle or strong you want your session to be- With 4 swappable massage heads, you can use each one to target different muscle groups- With 1 hour of runtime, it won't run out of juice halfway through your massage- The portable carry case makes it easy to take it on the move