Feature: 1. Two ways of use, charging wireless use and plug connection use, 2500mAh built‑in lithium battery, charging for three hours, can be used continuously for one hour, convenient for use. 2. One‑button start and stop, all‑metal polished buttons, easy operation. 3. The sanding sheet is gentle and does not damage the skin, exfoliating easily, coarse type is suitable for old calluses and dead skin on the heel, fine type is suitable for removing dead skin and daily care. 4. The maximum rotating speed is 600 rpm, high‑speed operation, larger torque and effective grinding. 5. All‑metal high‑torque gearbox, durable and non‑blocking, the motor provides surging power, metal machine body, high precision, good heat dissipation, sound insulation and noise reduction. 6. Ergonomic design, comfortable grip, light machine body, easy to carry. Specification: Condition: 100% Brand New Item Type: Electric Foot Callus Remover Material: Alloy Built-In Battery Capacity: 2500mAh Built-In Battery Model: 18650 Sanding Sheet Quantity: 60pcs Rotating Speed: 0-600rpm Features: Coarse and fine grinding, control switch, easy to carry, detailed design, stylish appearance Suitable for: Home, nail salon, beauty salon, etc. Length: Approx. 16cm / 6.3in. Package List: 1 x Electric Foot Callus Remover1 x USB Cable60 x Sanding Sheet1 x Manual Note: The machine body cannot be washed.