Turn your ordinary drawings into 3D works of art Speed slider allows you to stepless regulate the flow for optimal control of the material during your drawing New for 2019 ultrasonic waterproof nozzle is almost clog-proof and offers market-leading durability The 3D printing super pen is great for kids, artists, and engineers of all ages The kit includes 3 colors of ABS plastic filament A/ C adapter and slim, ergonomic stylus Note make sure that you press the power button to start heating, make sure the power cable is connected properly and the screen is on, if the screen does not turn on, try another AC to USB adapter if available and most importantly if you are heating. the mode starts but the current temperature does not increase, replace the nozzle. Note: The product does not contain a battery that can be charged and the product can not be used wireless.