Perfect Customer Service: This Electric nail drill has approved the CE safe certificate and also provides 12 months WARRANTY and 6 months FREE return or replace for quality problems; if you have any questions please contact us for free, customer service team will quickly reply within 10 hours on weekdays. Easy to Operate: 30000rpm professional nail drill no need for any auxiliary tools, press the knob to quickly change the nail grinding head, work efficiently; insert the grinding head, turn on the power, and gently rub back and forth like nail polish. No need to press hard! High-speed motor, very labor-saving and lightweight. Multi-Function Grinding Drills Bit: This nail polisher drill is equipped with a variety of drill bits for a wide range of applications, such as thick nails, hard nails, dead skin, calluses, nail art; it can be used in pedicure stores, homes or nail salon. Give the fingernails and toenails a perfect experience. 30000RPM High-efficiency Safe Work: The efile nail drill is powerful, low vibration, aluminum alloy body easily heat dissipation, no obvious hot feeling during work; support forward and reverse, can adjust the speed which can reach up to max 30000RPM per minute, work smoothly For beginners and experienced people. Rechargeable and Portable: This wireless nail drill with charger function and four battery displays: 25%, 50%, 75%, 100%. The battery indication can avoid power failure due to Insufficient power; charging for 2.5 hours, continuously working for 6-8 hours. This product has good features such as small size, lightweight, easy to install and disassemble, can be hung on the belt, waist, or can be loaded into a travel bag or box, convenient to carry around.