This high-quality foot file buffs away your thick and hard skin on your feet gently and effectively and bring your feet smooth and soft skin. <br><br><strong>Features:</strong><br>Two speeds are available choose, meeting different needs.<br>Replaceable and washable head, user can change it to wash thoroughly and completely.<br>One foot file with five grinding head: comes with five different tools, meeting user’ different needs for pedicure or manicure.<br>Strong and powerful: it can spin 360 degrees to remove calluses from any corner on your feet effectively.<br>It can be used to both hands and feet, practical and convenient.<br>USB charging: 3 hours full charge and it can work 40 minutes continuously.<br><br><strong>Specifications:</strong><br>Operating voltage: 4.2V<br>Charging voltage: 5V<br>Operating current: 0.2-1.5A<br>Battery: 3.7V<br>Charging time: 3 hours<br>Low speed: 1250±180rpm<br>High speed: 1550±180rpm<br>Power: ≤7.0W<br>Battery: 1 * Built-in 3.7V 900mAH polymer lithium battery (included)<br>Battery type: 18350<br>Item size: 9.9 * 7.5 * 4.3cm / 3.9 * 2.9 * 1.7in (L * W * H)<br>Item weight: 35g / 1.2oz <br>Package size: 17.9 * 15.9 * 5.3cm / 7 * 6.2 * 2in (L * W * H) <br>Package weight: 75g / 2.6oz<br><br><strong>Package list:</strong><br>1 * Foot callus remover<br>1 * USB cable <br>1 * Set of accessories<br>1 * User manual (English/Chinese)