This set includes a dust collection bag that converts your UB100DZ into a vacuum, so you can use it to collect the dust and dirt as well as blow it away! The Makita UB100DZ 12V Max Blower Bare Unit is a powerful but lightweight blower with a compact design. The speed is trigger-controlled, with three possible air volume settings (Low, Medium, and High). With an ergonomic soft grip and lightweight construction, the blower is comfortable for prolonged use. It can also provide a vacuum function when used in conjunction with a dust bag. The blower is equipped with a Battery protection circuit, which prevents the battery from sustaining damages from overdischarge, overload current, or high temperature. Ideal for both DIY and professional use. Features: Variable speed trigger 3 x air volume settings (High/med/low) Increased air volume Compact and lightweight for single handed operation Soft grip provides increased comfort on the job Battery protection circuit protects against overloading, over-discharging and over-heating Vacuum function Run time with 1.5Ah battery: High = 8mins, Mid = 20mins, Low = 45mins Bare unit - batteries are charger available separately.