https://www.hedge-trimmer.net/product/aluminium-gearboxes-lithium-hedge-trimmers/brushless-singleblade-lithium-battery-hedge-trimmer-with-aluminium-gear-box.html Voltage: 18V - 21V. Rotational speed: 18500r/min; Power: 400W Length: 480mm Cutting speed: ≥95 Cutting angle: 45° Max. cutting diameter: 15mm Battery: External option