Tens Unit 12 Modes [Lifetime Warranty] Muscle Stimulator Therapy for Chronic Back, Shoulder Pain Management  - Portable TENS Unit - FDA Cleared! [510(k) cleared]TechCare Massager Elite is a dual-channel battery powered multi function device, offering both Transcutaneous Electrical Nerve Stimulator (TENS) and Powered Muscle Simulator (PMS) qualities in one device. Pro offers a large LCD Display, 12 Modes and 2 A-B outputs. This unit features adjustable timer, battery life indicator and built in lithium battery.TechCare Massager Elite has 12 modes to stimulate most popular massages. A-B Out will allow you to have 2 different massages with different strengths at the same time.Package Includes:1 controller3 pairs of electrodes [510(k) cleared]4 output 2 electrode cables1 USB cable1 charger1 User?s manual1 plastic holderWarranty:Techcare Massagers are the highest quality over-the-counter TENS units on the market, that?s why it comes with 30 days Money Back Guaranteed and Lifetime Limited Warranty