Manufacturer: Carex Health Brands Accurelief complete 3-in-1 pain relief device. Tens for blocking pain, EMS for muscle recovery and massage for relaxation. Offers versatile, compact, and highly effective personal TENS, EMS, and massager unit perfect for work, home, or travel. Features: -3-in1 device acts as a TENS machine for pain relief, an EMS to help strengthen and revitalize muscles, and a massager. -The electric TENS unit features six built in presets with six customizable programs. -25 levels of intensity, The multiple levels allow users to find the perfect level of pain relief they need. Higher levels are excellent for more chronic and intense pain, while lower levels provide pain relief for mild pain.