The DEWALT 60 V MAX string trimmer is designed to power through tough overgrowth and withstand everyday heavy-duty usage. It features a high-efficiency brushless motor that maximizes runtime and motor life, and its lightweight and ergonomic design maximizes control and minimizes stress on your arms. It has a 60 V MAX FLEXVOLT battery that Powers 60 V MAX tools or it can be backwards compatible to work with 20 V MAX tools.