Decription: Features: 1.Mini Laptop Cooler: This cooler is lightweight, compact, innovative, stylish laptop usb cooling device that was designed to deliver both effective cooling as well as portability. 2.Keep the best Working: This fan will provide your laptop with the airflow needed to keep your system running at its best. 3.Convenient: USB interface, 5V power supply, more convenient and reliable. 4.High Speed Airflow: Sufficient airflow for gaming.Built in high speed motor,enables excellent airflow and greater heat displacement. 5.Speed Adjustment: The rotatable button could adjust the fan speed large or small or shut down. Specifications: Product size: about 175x86x52mm Fan size: 75x75x25mm Fan speed: 1500-3000 ± 10% RPM Maximum air volume: 75.35CFM Rated voltage: 5V Rated current: 0.35 ± 10% A Input power: 1.75 Included: 1 x Mini Laptop Cooler