Note: 1. Press and hold the button to enter the highest setting (speed 4). 2. The maximum setting is only valid when the output current is as high as 2A. Low/medium/high/super wind speed, this variable speed design can provide you with more choices in different temperature environments. "Retro metal base" uses a heavy metal base, and this stylish retro fan has been standing stably on the desk in the office or beside the bed. Just throw some magnets at the bottom and connect them to any metal pla