【USB Charging】 Built-in Li-ion Battery and USB cable included, getting rid of endless battery replacements. The exercise intensity of the machine increases by 50% than the battery-powered products. For better results, 20 mins a session, 1-2 times a day for 6+ weeks. This muscle toner can help to tone, tighten and strengthen your body muscles on abdomen, arms and legs, etc.
【Easy to Use】It's super light, ultra thin, WEARABLE, and convenient to carry on.Designed with ergonomics targeting abdominal muscle exercise. Fix the fitness gear to the position where you want to strengthen your muscle. To power on, press "+" button for 3 seconds; to power off, press "-" button for 3 seconds. Fitness anywhere/anytime that you want.