Electric Abdominal Muscle Stimulator - Slimming Massage Unisex Trainer The product is shipped based on the color or size of the main image of the product page. Electric Abdominal Muscle Stimulator - Slimming Massage Unisex Trainer. Features: 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 UseIt'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. Specifications: Main Material Body:PET Resin Gel Pad: Polyacrylamide Glycerin Remote:ABS Resin EMS Devices: Rechargeable Power Source Input:100-240V,50/60Hz Output: DC5V 1000mA Package Included: 3 * Main Units 1 * Belly Sticker 2 * Arm Stickers 1 * USB Charging Cable 1* Instruction Manual .