The Senix 4-QL 31cc handheld leaf blower & vacuum features a 4-cycle full crank engine that does not require mixing gas and oil, is lightweight, and low vibration for comfortable use. The powerful 31cc engine delivers air volume and air speeds up to 550 CFM / 127 MPH for excellent debris and leaf clearing capability. This blower vacuum also features a metal mulching blade which reduces debris at a 10:1 ratio into the zippered collection bag, which can be easily emptied when full.