GreenWorks GMAX 40V System offers a wide range of easy to use tools for the homeowner and those who just want more power. This 40V Jet Blower features a high speed brushless motor that delivers 115 MPH and 430 CFM making clearing leaves a breeze. Light weight and easy to use, with a variable speed trigger and cruise control for optimized control. Compatible batteries currently include a 2Ah (model 29462) and 4Ah (model 29472) battery and charger (model 29482). The 2Ah battery charges within 1 hour so you can get back to work and finish the job. The 4Ah battery charges within 2 hours.