The Mini USB Rechargeable Portable Desktop Fan by raugee features a rotary vane air supply system with three vanes to deliver natural, sleep, and prevailing wind types. Powered by a 2W lithium battery and USB, it operates quietly on five adjustable speeds. Compact and designed for table installation, this CE, EMC, and RoHS certified fan provides efficient, mechanical timer-free cooling ideal for home use. Its 5V power source ensures energy-efficient operation without high-concern chemicals, making it a reliable choice for personal ventilation.