Toro's 20 V Max string trimmer and edger is powerful and durable, with high-performing features that make yard care seem effortless. User friendly features make the job much easier and faster such as an auto feed line system and telescoping shaft with adjustable assist handles. With a simple 1-step push button, the operator can convert to edging in seconds and the wheel guides the edger for precision trimming. Battery manufacturer rating, 20 V maximum & 18 V nominal. Actual voltage varies with load.