Features: Uses electrical signals to directly stimulate and exercise the muscles. Suitable for arm, waist and leg muscles training. The low frequency treatment is by rhythm and soft impetus. Battery design, convenient to use. Help you get the physical you always wanted in a simple exercise program. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Item Type: Intelligent Body Building Patch Using Mode: 6 Modes Material: Silicone, PET Battery: 2 x AAA Battery Not Included Color: As Pictures Shown Abdomen Patch Size: 20 x 19cm Arm Patch Size: 20 x 7cm Package List: 1 x Abdomen Patch 2 x Arm Patch 3 x Main Body 10 x Gel Sticker 1 x Manual Package List: 1 Set ABS Stimulator Workout Equipment