Product DescriptionMaterial: Silicone + PlasticBlue light wavelength: 460480 mmRed light wavelength: 615630 mmColor: white, pink, blackQuantity: 1 piecePackage content: 1 piece * Dental instrument1.32 Blue-Red LED teeth whitening kit for Sensitive Teeth: Blue light accelerate lighting, Red light help slow down soreness, intended for sensitive teeth.2.Touch Button and Fast: Touch once to choose blue light mode (Use 15 minutes) and touch twice to choose blue-red light mode (Use 10 minutes).3.Magnetic charging: Built-in 300mAh lithum battery, can be used directly 7-8 times when fully charged.4.Comfortable and Easy to Carry: Food grade and soft mouth tray, no odor and resistance to bite. Easy to carry and you can share the whitening light with your family, friends.5.Range of application: Teeth Stains from coffee, tobacco, food coloring, aging and other factors that may cause discoloration.