specification: Item Type: Electric foot callus remover_x000D_Material: ABS_x000D_Gear: 2 Gear_x000D_Model: Model 18500_x000D_Power Supply: lithium battery(Built in)_x000D_Battery Capacity: 1200mAh_x000D__x000D__x000D_How to Use: _x000D_Power off mode: press and hold the button switch for 2 seconds in power off state, the work indicator light will show blue, and the grinding head will rotate at high speed (the massage head will vibrate at high speed); Speed regulation mode: boot state, short press the button to switch the grinding head speed (massage head high speed vibration) can be at high speed (the work indicator is blue); Press the button again to switch the grinding head speed of the foot grinder (ultra?high speed vibration of the massage head); Available at super high speed (work indicator light is red); Shutdown mode: press and hold the switch button for 2 seconds when the product is powered off; _x000D_Under the working condition of the product, the foot grinder grinds the skin on the contact part of the head, and presses down slowly. The pressure degree should be no discomfort for the skin. Please adjust the pressure or stop using the product if the skin feels uncomfortable during use. After using the product, please charge it in time. Lithium battery will affect performance degradation and service life if the pool is in dissatisfied state for a long time. After use of the product; Please clean the dust storage bin in time, dust accumulation may affect the vacuuming effect _x000D_Change the usage method of grinding head _x000D_1. Make the product in shutdown state; _x000D_2. Place the clip on the massage head in place; _x000D_3. Hold the clamp with your finger and pull up at the same time; _x000D_4. Press down the required grinding head and install it in._x000D_Cleaning sponge method_x000D_Rotate the dust storage chamber in the right direction to clean the internal sponge after loosening; After cleaning the sponge, the installation will be in the original position, and then lock the dust storage bin in the opposite direction to complete cleaning._x000D_Change the usage of massage head_x000D_Remove the sponge according to the cleaning instructions, install the massage head and lock it clockwise for use. Features: 1INTELLIGENT BUTTON DESIGN: The point foot callus remover kit features an advanced intelligent button design. Long press the power button to start grinding feet. 2VACUUMING FUNCTION: Foot grinding to remove dead skin, massage, built in vacuuming function. One button boot, with work indicator light, high and low speed can be switched. 3REPLACEABLE GRINDING HEAD: Equipped with 2 replaceable quartz sand grinding heads with different roughness, fine grinding head for daily care. 4EASY TO CLEAN: One of the grinding head mounted on the machine, all grinding head can be cleaned, easy to clean. Built in vacuum cleaner keeps your room clean and tidy. 5DIFFERENT GRINDING HEAD: Can be disassembled a variety of grinding head configuration, can be selected according to the actual situation of different grinding head. PackageList: 1 x Electric Foot Callus Remover 2 x Replace Grinding Head 1 x Brush 1 x Charging Wire 1 x Shelf 1 x Massage Head