Product information: Function: Infrared Portable: Yes Application scenario: Home Material: ABS. Net weight :109g Weight of box :300g Instructions: 1. Before using the product, clean your face 2. Tear off the film on both sides of the color light emitting area before use 3. Fit the color light emitting area of the product to the masseter muscle and lift it up through the fixed position of the bandage. The bandage can be adjusted according to the size of the head Packing list: Plastic face thinner*1