The Dr. Scholl’s Pedi Perfect Pro Electronic Foot File is a waterproof (IPX6), rechargeable device that gently buffs away hard, rough and dry skin for softer feet after every use. NanoTech roller heads with multi-directional micro-grinding points give fast, even results: an ultra head for the toughest skin, a fine head that smooths and polishes, and a contoured head for heels. The dual-speed motor offers gentle smoothing or more intense buffing, with Pressure Lock Technology for safe use. The battery gives up to 90 minutes of use per charge, with an LED indicator, and the patent-pending dust catcher keeps things tidy. Use on wet or dry skin. Pack Contents 1 Pedi Perfect Pro Electric Foot Callus Remover with x3 roller heads. Safety Warning See the manual for full instructions. For hard skin on the feet only; do not submerge. Do not use on one area for more than 3-4 seconds or on broken, sore or irritated skin, and stop if irritation or discomfort occurs. Use only the USB-C cable supplied; it is not waterproof, so do not charge near water or with wet hands, and detach it before cleaning. Stop if the device gets abnormally hot. If batteries leak, avoid skin and eye contact, rinse well and seek medical care. Keep out of reach of children.