Product Material: Silicone + Plastic Blue Light Wavelength: 460480 Mm Red Light Wavelength: 615630 Mm Color: White, Pink, Black Quantity: 1 Piece Package Content: 1 Piece * Dental Instrument 1.32 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.