Material: ABS Color: White, Pink, Black Product size: 13*2.3*2.3 cm Package contents: Nail polish machine*1, USB cable*1, Ceramic polishing head*1, Polishing head set*1, Charging base*1 Charging method: TYPE-C interface Charging voltage: DC 5V Working voltage: 3.7V Rated power: 2W Speed: 18000RPM Battery capacity: 500mAh Working time: approx. 2 hours 1. Equipped with a USB cable, you can easily use it with any device with a USB socket such as power banks, laptops, AC adapters, and even car chargers. No longer worry about limited adapter cables, enjoy your nail art anytime at home or on the go, and it can also be used after charging. 2. Multifunctional nail polishing set, equipped with 6 polishing heads, one of which is a ceramic polishing head, you can use this nail file machine for all-round grinding, engraving, cutting, polishing, and cuticle removal. 3. Adjustable and efficient, easy to use. This nail polish machine is made of ABS material, has an adjustable speed control knob (0-18,000 rpm) and rotates in F/R direction, suitable for right- or left-handed users. Works well for all levels of manicurists and beginners, cutting your time in half. 4. Low noise, low heat, with upgraded powerful motor design, combined with intelligent heat dissipation, this nail file machine maintains low heat, low noise, and low vibration, providing a very friendly working environment for users and people around. 5. Easy to carry, use anytime and anywhere, and change the grinding head effortlessly. Equipped with ceramic corn grinding tips, quartz grinding tips, diamond grinding tips, round table grinding tips, cylindrical grinding tips, wool grinding tips, and a base that can hold up to 8 grinding tips.