OUILA USB Fan: Enjoy powerful cooling with whisper-quiet operation. This USB fan boasts a top speed of 3800 rpm and 4.5 m/s air volume, yet produces less than 45 dB of noise, even at its highest setting. Features 3 speeds, 360° rotation, and a removable front grill for easy cleaning. Its 1.2m USB cable ensures compatibility with various devices. Perfect for work, study, sleep, or yoga.