Efficiently train areas of concern (waist arms legs). Electrodes on two wings fit various parts of the body. EMS works directly on your waist arms & legs. Rechargeable so you can wear it anytime anywhere. Adopts a rechargeable button battery that does not require replacement. After about 5 hours of charging it can be used 30 times. You can wear it anytime anywhere without any hassle. Thin light & cordless.A design that fits your everyday life. SIXPAD's product concept is wearable training gear. made from highly flexible soft silicone it is Approx. 3mm thin & follows the curves of your body. A design that fits your everyday life has been created. Yes no warranty with battery