The wire windings and iron laminations used in conventional motors has been eliminated in Core Outdoor Power products by embedding copper-etched conductors into a multi-layered printed circuit board to form a stator that works in conjunction with permanent magnets to produce torque. As a completely gas-free system, Core technology provides the unique ability to exceed noise, efficiency and emission standards without increasing costs and without sacrificing performance. The CGT400 Trimmer is reliable, lightweight and will run just as long as a tank of gas.