The Makita DVC660Z is a cordless backpack vacuum cleaner powered by two 18V Li-ion batteries in series to supply energy to the powerful 36V DC brushless motor drive system. Equipped with Battery protection circuit, the DVC660Z is designed to protect the battery from damages due to overdischarge, high temperature or overload current. Mode memory function allows start-up in the same suction power as when you turned it off previously. The DVC660Z is also extremely low noise when in use. The design of the unit includes a large dust bag capacity and it comes equipped with HEPA filter. There is a LED job light on the controller which is also equipped with a belt clip that clips onto the waist belt of the comfortable and fully adjustable harness. The controller is operable in hand for on/off switching and max/high/low power selection.