The OMRON Max Power Relief TENS device offers two times more power and is one of our most versatile TENS units for the relief of achy, stiff or sore muscle and joint pain. This highly customizable TENS device has multiple body pain modes, massage-like modes and levels of power intensity to relieve chronic, acute and arthritic pain. You can use it at home or take it to work, the gym or anywhere you're on-the-go. When you have those hard-to-reach, deep pains that just keep coming back, choose Max Power Relief to alleviate the pain without a prescription. It is perfect for those who may experience pain in the lower back or recurring knee and shoulder pain. The OMRON Max Power Relief is one of our strongest, most adaptable TENS units for all of your pain management needs. It uses comfortable, self-adhesive Long Life Pads that can be used up to 150 times. Unit - One-Year Limited Warranty; Pads are warranted for thirty days.