In order to treat the pain, you have to reach it

RS-4i® Plus Sequential Stimulatorwith Intersperse®

This true high-frequency device for in-home use uniquely delivers both pain relieving Interferential Therapy that penetrates deep into soft tissue to excite the body’s natural endorphin production for long-lasting pain relief and the rehabilitative muscle stimulation of NMES that reduces muscle spasms, increases circulation, and preventsdisuse atrophy.

Exclusive to the RS-4i Plus, patent-pending Intersperse® technology provides the muscle contraction of NMES, with pain relieving Interferential pain relief inserted during the relax periods. You get intermittent contraction, then pain relief, then contraction throughout the duration of sessions, enabling shorter, more comfortable, and more impactful treatments.