Specifications:Specifically designed for muscle training.This muscle machine can help tone, tighten and strengthen your body muscles.All you have to do is to fit the pads to your body and let them exercise your muscles.About 20 minutes is all it takes per session.There are 6 modes and 12 levels of intensity.You can use this EMS ab trainer anytime, anywhere.It's super light, ultra thin, wearable, and convenient to carry on.Specifically designed for muscle training.This muscle machine can help tone, tighten and strengthen your body muscles.You can gain a better figure after consecutive use of this product for about 2 months.EMS (Electrical Muscle Stimulation) works through current stimulation which directly sends signals to muscles and promotes movement.All you have to do is to fit the pads to your body and let them exercise your muscles.About 20 minutes(10mins low level, 5mins medium level, 5mins high level) is all it takes per session.There are 6 modes and 12 levels of intensity to help burn fat and increase muscle.You can use this EMS ab trainer anytime, anywhere.It's super light, ultra thin, wearable, and convenient to carry on.It can be worn unobtrusively under your clothes, making it ideal for muscle training even when you're out in public.SpecificationVoltage: AAA*6 (not included)Frequency: 1~100HZWorking Time: 12minutes(Per installation time)Color: black yellow/ balck redPackage Included:1 * controller1 * Abdominal stickerNotes:Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.