Discover the next level in teeth whitening with our Smart LED Whitening Tray. Designed for home use, it combines advanced cold light technology with a comfortable, human-engineered mouthpiece, ensuring effective stain removal and a brighter smile with ease and comfort. What is included: 3 gel pen ( each gel pen can be used for 3-4 times) Dual Mode Wireless LED Tray Charging Cable Whitening Shade Guide