Cordless lawn trimmer series einhell ge ct cutting system blade blade cutting width 240 mm battery voltage 18 v type of battery li ion number of batteries with 1 battery battery capacity 15 ah running time 40 minutes rotations per minute 8 500 rpm power transmission direct handle shape d handle adjustable additional handle tilting cutter head telescopic handle telescopic stufenlos safety feature plant guard max spl 78 db max sound power level