Features: USB Powered 1200mAh battery, it is compatible with usb charging adapter, power source, laptop, etc. Convenient to use indoors and outdoors The LED display will show the remaining power and prompt you to charge. 2 Speed Control The Electric Foot Rasp with 2 speed settings can be adjusted to your requirements. Speed 1: 1900rpm / Speed 2: 2200rpm Three Roller Heads Come with 3 different style roller heads ： 1 thin roller for daily foot care; 1 regular roller to remove dead skin; and 1 coarse roller for annoying calluses. The roller is composed of exfoliating micro-grains to easily and quickly remove all calluses for a very soft foot effect in no time Waterproof and Easy to Clean This allows you to put your head under water. The foot pedicure roller can be disassembled or installed with just one button, making it easy to clean and replace. Note: in order to ensure the duration of the foot pedicure rasp, please do not immerse it frequently in water Use Anywhere One size 15.3 * 6cm lightweight and portable. No need to drive to the pedicure salon, The electric rasp easily removes thick skin, dead skin, cracks, hard skin, dry skin, calluses and other foot problems, giving you a better foot care experience . Specifications: Material: ABS + PP Size: 19.5 * 14 * 5.5cm Net Weight: 280g Voltage: 5V 1A Battery Type: 1200MaH 18500 lithium battery