Features: 1. With dust suction function, to reduce fine debris falling, keep it clean; 2. Whole-body water washable, it is suitable for various conditions, convenient and clean; 3. With lighting function (local lighting), to offer better care; 4. It is easy to disassemble and replace the remover, for various requirements of you and your family members; 5. With fine and rough, 2 types of removers, for various work conditions; 6. 2-stage speed regulation, for your requirements on care; 7. USB recharging design, 1-hour fast reecharging, the indicator light will flash in RED instead of being always RED when the recharging is over; Operation: 1.Open, press ON/OFF/speed regulation button for 3 seconds to start. Work/recharging indicator light will be green and flash slowly, and the lighting will start. 2.Speed regulation: when it runs, press ON/OFF/speed regulation button to switch to the ultra high speed, work/recharging indicator light will be green and flash quickly, and the lighting will start. 3.To turn off, press ON/OFF/speed regulation button. 4.Plug-in & plugout mode guarantees continuous care (when the battery runs out in use); 5.When the battery volume is too low, the work/recharging indicator light will flash quickly in red for a few times, then it will be off, the product will be off automatically. Specification: Product Name: Electric Foot Grinder Interchangeable grinding heads: 3 replacement grinding heads Rated power: 3W Rated voltage: 5V---USB Charging time: 90 minutes Net weight: 180g Package Included: 1 * Foot We are confident to provide you with quality products, please rest assured to buy,if you have any questions, please feel free to contact usSafe & Comfortable: Ergonomic handle design to hold comfortably, no need to bend down to polish body parts,make your foot spa more convenient.Remove calluses and hard skin easily within minutes, make your feet smooth and delicate. Vacuum: Built-in vacuum cleaning system, automatically absorbs debris from the skin of the feet, absorbs while removing dead skin, and solves the trouble of flying debris. Easy to clean: The whole body can be washed, suitable for various conditions, comfortable and clean. Double gear control: Low speed is suitable for callus tissue of the hand and more delicate skin care. High speed suitable for removing stubborn thick call and dead skin. Three round grinding head: three round grinding head design, easier to fit the skin, take care of dead corners.the quartz sand material is hard and wear-resistant. Three round grinding head: three round grinding head design, easier to fit the skin, take care of dead corners.the quartz sand material is hard and wear-resistant Double gear control: Low speed is suitable for callus tissue of the hand and more delicate skin care. High speed suitable for removing stubborn thick call and dead skin Vacuum: Built-in vacuum cleaning system, automatically absorbs debris from the skin of the feet, absorbs while removing dead skin, and solves the trouble of flying.