With a built-in 1300mAh rechargeable battery, the device offers up to 180 minutes of continuous use after a single 3-hour charge, giving you the freedom to care for your feet anytime, anywhere without interruption. Compact, elegant, and easy to handle, the J004 fits comfortably in your hand, allowing precise control for safe and efficient callus removal.

Its dual-speed adjustment (4057 RPM / 5500 RPM) lets you customize the intensity according to your skin type, from gentle daily maintenance to more intensive exfoliation. The glass grinding head provides a smooth, professional-grade finish while protecting delicate skin, and the low-noise motor ensures a quiet, relaxing experience.