NEW, Unit Muscle Stimulator (FSA or HSA Eligible) Rechargeable Electronic Pulse Massager with 4 Reusable Pads - Pain Relief Therapy Machine with Dual Channel 25 Modes Features & details: TENS PAIN RELIEF- The muscle stimulator tens unit delivers 25 modes and 50 level intensity. Effectively treats muscle pain and tension, relieves persistent chronic pain. FSA or HSA approved product. POWERFUL MASSAGER - The tens unit modes range from Shiatsu/Deep Tissue to Low Intensity with Kneading/Knocking, Cupping, Acupuncture, and Tapping as other options ADJUSTABLE INTENSITY AND TIMES -The EMS massager has 50-level of intensity allow you to explore for a different unique experience, the default time can be adjusted conveniently from 5-60 minutes. REUSABLE 4 ELECTRODE PADS- The pads have good conduction with hydrogels utilize multi-layer technology, it is reusable for 70-110 times when properly used, continuously use 10 hours after fully charged.