The GLISTEN Smiles Kit includes a GLISTEN mouthpiece which employs high intensity cold LED (Light Emitting Diode) light technology has been scientifically researched to take the oxidation reaction which is breaking down the discoloured molecules causing stains, and SPEED THEM RIGHT UP! So that your teeth will GLISTEN in no time. The GLISTEN Kit also includes 3x GLISTEN Gel Pens, Micro USB Android Adapter, Lightening Adapter for Apple, USB-C Adapter for Apple, USB Adapter for PC, GLISTEN User Manual and a GLISTEN Results Chart.