Robot 3D drawing pen is the first 3D pen with voice prompts on the market. It can help children improve their spatial thinking and imagination. It can turn their ideas into reality It's also a great way for parents and children to spend quality time together.This 3D printing pen is very easy to use for kids. Control it with just 2 buttons. There is an automatic feed to help hand fatigue. Just press the function button and start doodling Both PLA & ABS filament are supported. Comfortable for the hands for both children and adults.When the 3D pen is working and the filament is coming out from the nozzle, double click "Function Button" to change the filament output speed. The device comes with 2 finger protectors to cover your thumb and index finger to avoid scalding during use.Robot's change in eye color and voice feedback can both guide you when using the 3D printer pen. Children as young as 5 years old can use it easily and let their imaginations run wild Device will automatically sleep when left on standby for 80 seconds. Tried and tested products to ensure the safety of our users.