USB Fan Speed Controller Airflow Regulator Cooling Mute Multi-Setting Office Dormitory Bedside Mini Z-5391 China

Product descriptions from the supplier Continuous Variable Speed Control: Smooth airflow adjustment from 2.5V to 7.5V for precise cooling. Multiple Settings: Choose between strong and gentle airflow for versatile cooling needs. Compatibility: Works with most common USB fans, providing flexible cooling solutions. Compact Design: Ideal for office desks, dormitories, and bedside tables, saving space. Plug-and-Play: Easy setup with a single switch for quick and convenient use.