nail drill TECHNICAL FETURES: Durable Aluminum Alloy Material with UV Surface Treatment HD Display Rotary Speed & Battery Capacity High Torque 35,000 RPM Ultra Smooth Brushless motor, Quiet and Vibration Free 8-10 Hours Battery Life after 3 Hours Full Charge Smart Play/Pause Control for easy use Variable Speed Control Forward/Reverse Switch Smart Safety Overload Protection Acetone Resistant Finish Control Box Smart Charging Base for easy charge on Desktop Compact Light Weight for easy to carry Auto Switching 110/220V Volts