Nail polisher from 12W to 20W.000 rpm. •Adjustable speed. •Includes 6 manicure heads and 6 files. •Forward and reverse rotation direction options. •Low vibration and quiet operation. •Metal fuselage and fine heat dissipation. •Internal overload protection device. Feeding and control. Power supply: 100-240V Output voltage: DC 12V Output current: 1000 mA Frequency: 50-60Hz Motor: Power: 12W Indicated voltage: DC12V Rated current: 0.14A No-load speed: 18,000 - 20,000 RPM Speed with manicure heads: 16,000 - 17,500 RPM ABS and metal alloy.