For pain, relief muscle performance. Key FeaturesTechnology: Uses electrotherapy (TENS/EMS) to stimulate muscles and alleviate aches and pains.Design: A dual-channel, portable unit that typically includes various massage modes (such as acupuncture, tapping, and deep tissue) and adjustable intensity levels.Applications: Commonly used for the back, joints, and other muscle groups to aid in recovery or manage chronic pain.