Make of which is sturdy and enduring; the suction port is equipped with nylon brush, which is soft and does not damage the surfaces of objects Built-in rechargeable battery, charged through a universals USB interfaces, and say goodbye to the trouble of frequent battery replacement High efficiency motor, with nylon brush head, can easily absorb , eraser , and other debris in the of the keyboard Clear box designs, moderate capacity, a clicks to open the lid to pour out garbage, cleaning and maintenance are super motor structure, low noise during work, will not interfere with the and study environment