This is the cordless wearable muscle exerciser that uses electronic muscle stimulation (EMS) to tone underarms without breaking a sweat. Employing clinical technology used by physical therapists for rebuilding atrophied and weakened muscles, the device delivers a painless electrical pulse to key nerves, causing nearby muscles to rhythmically contract and release, boosting their tone. It secures to both arms via hook-and-loop-fasteners and each arm can be operated independently. With 10 modes and intensity levels. Recommended for 15 minutes a day, results typically seen in 4-8 weeks. Charges via USB. Not for use by those with a pacemaker.