The Pool Blaster Battery Powered Leaf Vacuum is completely self-contained and does not require the use of a garden hose. Instead, its on-board motor, transmission and safety clutch combine with a unique Super-Suction Propeller to lift leaves, twigs, and debris right off the pool floor and deposit them into its high capacity debris bag. It's lightweight, fast, and easy to use. At the heart of the Pool Blaster Leaf Vacuum is its unique Super-Suction Propeller. This wide-bladed propeller enables the Pool Blaster Leaf Vacuum to effortlessly pull leaves up and off the pool floor. While creating suction, the slowly rotating propeller continuously keeps debris, such as leaves, seeds and twigs, agitated and moving, which avoids blockages experienced with garden hose powered Leaf Vacuums. The Pool Blaster Leaf Vacuum features Water Tech's proprietary Safe-Blade System to assure worry-free operation.