This is a nail file drill helps you do your nail art work at home and save money from beauty salon. PRODUCT FEATURES ● Pink color, attractive looking ● Aluminum alloy body, efficient dissipation ● Pen shape for comfortable grip ● Maximum speed up to 20,000 RPM ● Two way switch direction ● High speed and portable ● Quiet and easy to operate ● Light design, easy to operate and change the bits SPECIFICATION Output Voltage:DC 5V Speed: 0-20,000 RPM (adjustable) USB Cable OPERATION INSTRUCTION Step 1: Choose the drill head you want and plug in. Step 2:Connect the power cord with nail drill handpiece and the other end with the wall socket. Step 3: Control the FORWARD/OFF/REVERSE button and control the speed knob to adjust the speed you want. Step 4: Pull out the drill head after use. PACKAGE INCLUDES 11 x Nail Drill Machine 10 x Drill Bits 1 x USB Cable 16 x Sanding Bands 1 x nail brush 1 x User Manual ATTENTION PLEASE: ☛To extend the machine life, please turn off the power when changing nail drill bits. ☛While using,please adjust the speed or change the turning directions gradually. ☛To prevent overheating, No More Than 20 Minutes of continuous use each time is recommended ☛Please don't rotate to open the drill body,that will damage the electric machinery.