Feature: 1.USB charging: USB rechargeable built-in Li-ion battery and USB cable included which not only reduces the cost of frequent battery replacement but also protects the environment. The intensity of machine exercise increases by 50% compared to battery-powered products. Fully charged in 1 hour you can get continuous work for 3 to 4 hours you can charge this muscle stimulator with your laptop or 2.Fat Burning & Toning Muscle & Body Shaping: Consecutive use of this product for 8 to 10 weeks shows an obvious effect. 2 to 4 times a day 20 minutes an hour. 60 minutes of sit-ups and swimming for half an hour and two weeks of dieting. This muscle toning can help tone tighten and strengthen the muscles in your body. You will be able to obtain a better silhouette after consecutive use of this product for about 2 months. Modes: Mode 1: When the white light below is on Mode 2: When the white light above is on Mode 3: When two white lights are on Mode 4: When the blue light below is on Mode 5: When the blue light above is on Mode 6: When two blue lights are on Functions: 1.Mode 1 & 2 fat burning In these two modes the muscles move intensely and burn fat fast. 2.Mode 3 & 4 muscle growth Strong elastic movement deep stimulation to support muscle growth. 3.Mode 5 & 6 body sculpting These two modes are composite modes that help build a perfect figure.