Cools your 25.4 cm (10") to 39.6 cm (15.6") notebook and ensures optimal air circulation which helps avoid overheating Adjustable vertical tilt, ideal for ergonomic working on a notebook while standing or sitting With blue LEDs Rubberised base ensures stability Low power consumption saves the notebook battery Powered via the USB port on the notebook Hardly noticeable fan noise Volume: 25 dBA Power consumption: 490 mA No. of fans: 2