Features: 1. Close fitting, ergonomic, comfortable to use. 2. Skin-friendly silicone conductives film, low resistance, effective transmission of pulse energy. 3. Simulate muscle movement, sound waves vibration, go deep into the fat layer, drive face muscles to move by themselves, improve the nasolabial folds and face line. 4. Easy to improve muscle sagging, reduce fine lines, wrinkles, face lifting, tightening face skin, create V-face. 5. There are 3 gears adjustable, can choose according to your own needs. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement. Specification: Material: ABS, silicone Charging method: USB charging Power: 1W Rated voltage: 3.7V Precautions: 1. It is recommended that users with weak chin joints or headaches to shorten using time. 2. Normally wear it 1 - 2 times a day, every 10 - 20 minutes 3. Due to personal differences, the wearing time can be appropriately reduced according to the actual situation; 4. Do not wear it for a long time, so as not to cause discomfort; 5. If it causes skin allergies during use, please add cotton cloth to use 6. Not recommended for use in a deep sleeping state. includes: 1 x face-lifting massager