Immediate Pain Relief with TENS Unit! MStim Reha LGT-231 is a portable TENS & NMES device suitable for use by healthcare providers and individuals for effective pain relief treatment wherever. The device is versatile providing both TENS and NMES treatment and the user app makes it easy to operate and set up the treatment. 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