Electric Face Microneedling Machine 3 Speed Gears Skin Moisturizing Rejuvenation Device Item Type: Face Microneedling Machine Material: Plastic Input: 5V / 1A Battery Type: Lithium Battery 5V 1200mah (Included) Size: Approx. 18 x 12.5cm / 7.09 x 4.92in How e: 1. Counterclockwise rotation unscrew the essential bottle cover. 2. Remove the fixing bracket of the essential bottle. 3. Fill the essential bottle and then insert the essential bottle into the instrument mouth. 4. Fix the bracket, turn on the power of the instrument, drop the water like serum onto the skin, smear evenly, and then use the nanocrystalline head to the skin. 5. Long press the power button for more than 1.5 seconds to start the device. After the device is started, the working indicator light is steady green. When the device is powered on, press the power button to switch modes: Mode 1 (no light), Mode 2 (red), Mode 3 (blue), Mode 4 (red and blue); Long press for more than 1.5 seconds to power off, while the working indicator light is off.