How are the RS-4i and the RS-2m different from TENS?
The RS-4i provides two treatment modalities, interferential current and muscle stimulation, while TENS provides just one. Interferential current relieves pain using a waveform that is unlike that of the TENS. The RS-2m provides muscle stimulation which restores muscle function using a waveform that is different than TENS and Interferential. For more information, view Comparing Sequential Stimulation with TENS under Learn About Electrotherapy.
