This combo kit delivers gas-like power with the convenience of cordless. This 40-volt string trimmer and blower kit provides you with the tools you need to get the job done this season. This string trimmer is equipped with a 40-Volt high-capacity battery, resulting in more run time than most gas trimmers with fade-free power. It features an auto-feed string head that advances line with the pull of the trigger and accepts any of the Ryobi auto-feed spools for quick and easy reloads. The 40-Volt Jet Fan Blower has a sophisticated jet fan design powered by a 40-Volt lithium-ion battery, this cordless blower provides fade-free operation at 155 MPH and 300 CFM.