The principle of lip Lip Device:Through the physical movement and forging method, the lip is promoted by the vacuum suction of the lip, which promotes the expansion of the capillary tube of the lip, and finally achieves the effect of lip lip protection. This method is safe and scientific. It does not need to be injected with surgery. It does not need to use chemical substances such as hyaluronic acid. It is non-invasive and painless. It gives you a natural feeling of lips, and has a lip that feels full. It is full of confidence and full of charm. Instructions for use : 3 levels of power to choose: low, medium, strong. Press again to turn off suction. Suitable for different power .For comfortable use, lip plumper is carefully designed according to human lip geometry, ergonomic shape. Unique lightweight air-emptied design that effectively avoids bruises and injuries. Easy to use, apple lips and plump lips types. USB charging, built-in 250mAh battery, a full-time charge could be equal to the use of about 50 minutes continuously. Portable hand size and light weight, LED lights, no harmful chemicals. Use soft silica gel material which is environmentally friendly and natural to human skin. The lip lip device is very easy to use, press the power switch, adjust to the appropriate gear position and attach it to the lips. Do it 3 to 5 times a day, 5 minutes each time, stick to 4 to 6 weeks, the lips It will become really full due to more collagen production. Description: Item type: Lip fillerProduct size: 18*5.6cm Product material: silica gel Output voltage: 5VInput current: 5V/2A Package Includes: Lip Plumper Device *1 USB Data Cable *1 Manual *1 Notes: Please allow 1-3mm error due to manual measurement. pls make sure you don't mind before bidding.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!