Unlike most EMS devices in use today, Rehaba's TeslaMax® TM-4™ uses a proprietary and unique High Voltage, Low Amperage Alternating Current (AC) for Deep Tissue Exercise (DTE). While not yet cleared by the FDA for marketing, Rehaba's beta field test analysis suggests that this technology will most likely be best in its class for safety, comfort, ease of use and results. Until an FDA 510k is  granted, Providers and End Users must fill out an Informed Consent Form in order to use the TeslaMax® TM-4™.