Greenworks GMAX 40V system offers a wide range of easy to use tools for the homeowner & those who just want more power. This 12″ cordless string trimmer features an front mount motor for optimum balance. Light weight & easier to use, it has a variable speed trigger for power on demand, 12″ cut path, .065 line diameter auto feed head for easy line advancement. Designed for ease of use & comfortable operation without the hassle of gas. The 40V axial blower features a variable speed trigger & cruise control for optimized control. With 110 mph & 390 CFM, blowing leaves has never been so easy. Compatible batteries currently include a 2Ah (model 29462) & 4Ah (model 29472) battery & charger (model 29482). The 2Ah battery charges within 1 hr. So you can get back to work & finish that job. The 4Ah battery charges within 2 hours.