This miniature version of the Wireless Muscle Stimulator offers electrotherapy with one simple change: portability. This Mini Stimulator still brings you 6 pre-set programs to let you choose your stimulation level depending on if you're warming up, recovering, or enduring pain. From the Pre-Warmup program that offers low-frequency oxygenation to the Resistance and Endurance programs that activate the muscle metabolism, this unit offers a wide range of functionality to help you through every part of your training regimen. The Mini Muscle Stimulator even offers a TENS program that is pre-set to help alleviate temporary pain.