high-power, high-speed, low noise, durable. heat sink design, reduce heat. ALTERNATE CURRENT engine, high efficiency, long service life. protective cover of the power supply, extend the service life. the fuselage uses the ABS environmental protection material, strong resistance is good. portable single-handed operations, suitable for double chassis sets, meet the demand of dual polishing wax. waxing and polishing a complete, ideal for car, stair railing, floor, home, etc.