quick double-click to turn on (red light=180°C); Double-click again for blue light (110°C); double-click to turn off; Auto shuts off after of no use; After powering on (light flashes fast), press and hold the button to heat; Release to stop; Red+blue lights flashing=low battery; Red solid=charging the main function of the moisturizing box is to soften and soothe the material of the card by controlling humidity, making it easier to straighten and flatten; When the card absorbs a certain amount of moisture in , it can be easier to carry out subsequent physical adjustment processes, such as flattening or removing bends The kit includes: 1 clear moisturizing box, 2 clear acrylic Sheets, 5 black sponge pads, 1 bone folder, 1 Thermal Pen(USB powered, blade is not included), 10 Clear Heat PC sheets; 25 Heat paper using 2 types of clamps and clear round acrylic sheets, this card flattening kit provides a secure and efficient method to your cards remain flat without damage; The acrylic sheets protect while the plastic clamps secure, making it the ideal primary card flattening tool; Blue solid=fully ; Runtime: charging 2 hours; Full allows 17 mins of continuous high-heat use no responsibility is assumed for your actions with this kit; You should practice on basic cards first ; When using the dent removal method, make sure not to use too much on the mat, otherwise it cause water spots on the card