Dental spa that can be done at home! Use it continuously for 7-15 days to witness the transformation of bright white! Multiple Nursing Methods! 1. Using blue light - the instrument's special LED cold light helps to penetrate the whitening agent to the tooth surface, speeding up the breakdown of pigment 2. Use Red light -Fresh your breath, oral hygiene and healthy gums maintains a healthy oral environment 3. Use blue and red light - If your gums are allergic, use this dual light mode when whitening your teeth to whiten and relieve gum pain at the same time Range of application: 1. cold blue Light-Teeth Stains from coffee, tobacco, food coloring, aging and other factors that may cause discoloration. 2. LED red light-Maintain oral hygiene healthy Fast Teeth Whitening! How to use? 1. Clean tooth surface with toothpaste or mouthwash before use 2. Apply a small amount of tooth whitening gel or plastic whitening strips on the teeth(Not included） 3. Choose red light or blue light or red light blue light mode when booting, it is very convenient, it will automatically stop working after 16 minutes 4. Lighting mode switch: Press and hold for 3 seconds to turn on，touch once to choose blue light mode and touch twice to choose red light mode ，touch three times in quick succession to select blue-red light mode. Press and hold for 3 seconds to shut down. 5. To ensure the normal operation of the machine, please fully charge the machine before using the new machine Tips for use ！ - Charge completely before first use, the blue light will flash on and off. That means it is charging. - To turn on/off: Long press the power button, until lights turn on/off, when you unplug to use it, gently put your thumb on the button and hold, DON"T PUSH HARD. The unit will light up. - To change light modes: Once on, it is blue. Quick press once for red/blue, press again for red, and again to go back to blue. This is where it is sensitive and will quickly switch modes at the lightest touch. -What helps deal with the button sensitivity: Once on the mode you want, grab it from the sides to place in your mouth or place in your mouth first and then turn it on, etc. Look in a mirror and you can see what mode it's on by the color your mouth glows! Tips for use ！ - Charge completely before first use, the blue light will flash on and off. That means it is charging. - To turn on/off: Long press the power button, until lights turn on/off, when you unplug to use it, gently put your thumb on the button and hold, DON"T PUSH HARD. The unit will light up. - To change light modes: Once on, it is blue. Quick press once for red/blue, press again for red, and again to go back to blue. This is where it is sensitive and will quickly switch modes at the lightest touch. -What helps deal with the button sensitivity: Once on the mode you want, grab it from the sides to place in your mouth or place in your mouth first and then turn it on, etc. Look in a mirror and you can see what mode it's on by the color your mouth glows!