PowerSmart 18V Lithium-Ion Cordless String Trimmer/Edger Trim and edge your yard . This cordless, 18-volt Max trimmer/edger is well designed and easy to use. Minimal maintenance, touch-of-a-button start, variable speed trigger and automatic line feed, heavy-duty line make this tool a breeze to use.high performance motor to tackle tough overgrowth this battery charges in approximately 60 minutes in the quick charger,It's a powerful, lightweight, and easy to use yard and garden machine. The specially-designed adjustable handle and shaft can accommodate varying working heights for maximum comfort and control. Save time and effort with an easy safety start trigger -- no more pull starting; no more gas/oil mixes; no more exhaust smells; and no tangled cords.The LithiumPower battery is lighter in weight and more compact. "Integrity,Stability,Efficiency,Sustainability,"is key to PowerSmart sevice,it will be your best decision to choose our garden tools serise.