OULII Ultra-quiet USB Powered Plastic Electric Mini Desktop Cooling Fan for PC Laptop Notebook (Pink) Color: mainly pink. Material: durable hard plastic. USB cable length: about 1.2m. Working voltage: DC 5V. The motor is made by DC brushless technique, to provide ultra-quiet and strong wind with low power consumption 360-degree adjustable design: Pitch angle can be adjusted upwards and downwards to meet different needs. Powered by the included USB cable to connect with your computer or DC 5V power adapter (not included). Come with a ON-OFF switch on the back, for easy to operate.