The G-Force Li-ion blower with push button start and speed control produces 140 MPH / 540 CFM of air power for all your clean-up needs around your yard in every season! No more smelly gas, no more pulling ropes, no more loud noise! The well-balanced handle includes push-button controls at your fingertip for on/off and 3 speeds as well as a cruise-control lever for extended use. Two different shaped blower tips are included to provide air-flow control in different applications.Designed by: Nigel Robson and Zhao Liu of Sumec Hardware and Tools Co., Ltd.Contact: tcri@sumec.com.cn