Features: Powerful Electric Operation: Effortlessly removes tough calluses with strong, consistent motor performance. Smart Digital Display: Provides clear real-time information, including battery level, speed setting, or mode. Integrated Vacuum Suction: Automatically collects dead skin debris, ensuring a mess-free and hygienic experience. Effective Callus & Dead Skin Removal: Designed to gently yet thoroughly buff away hard skin for smoother feet. Multiple Speed Settings: Allows users to customize intensity for different skin types and callus severity. Ergonomic & Portable Design: Comfortable to hold and easy to carry, ideal for travel or home use. Notice: Actual color may vary slightly from the image due to lighting conditions. Please allow 1–3 cm measurement deviation due to manual measurement. Voltage: USB charging DC 5V Power: 6 W Charging time: approximately 2.5 hours Motor speed: approximately 13,500 RPM Speed settings: Fast mode ≈ 2,200 RPM; Slow mode ≈ 1,700 RPM Battery type: 1500 mAh lithium-ion battery Continuous battery life: approximately 100 minutes Package includes: 1 coarse sanding head 1 fine sanding head 1 USB charging cable 1 cleaning brush 1 transparent protective cover 1 color box 1 instruction manual Package List: 1 foot dead skin callus remover