Strengthen Muscles with Advanced NMES technology! The compact and portable NMES unit MStim Reha LGT-231 is effective in strengthening muscles using electrical currents. It is usually used as part of a comprehensive rehabilitation program to help achieve unmatched muscle rehabilitation. Highlights Compact and Portable Battery-Operated 2 Channels NMES & TENS A Wide Range of Indications Preset Protocols with Pad Placement Guidance Custom Protocols User App Control - “MStim Reha” Certification: CE, FDA, Health Canada 2 Years of Warranty