Features: Pen type design, comfortable for you to hold, give you a better using experience. Easy to operate: Put the small rosin (NOT included) into the machine and long press to starts atomization to use, no need the soldering iron. Small in size and easy to carry, you can put it into your tool box to storage and carry, you can share it with your family and friends. You need to buy rosin separately by yourself to use together, this product NOT include rosin, please check before order. It is easy for you to operate and will not damage to the motherboard, and the operations is simple, no need too much professional skills.