Portable Notebook Laptop Cooling Fan For Laptop USB Air Extracting Universal Notebook Fan Cooler For Lap Top Notebook Cooling keyfeatures: 1.The appearance of the novel: the use of a variety of game elements. In cool concept, tailored, extreme carved figure, individuation. 2. The manual mode: in manual mode, can be controlled manually adjust the fan speed knob. 3.Product design humanization: each radiator is equipped with 4 kinds of wind guide sets, to cope with any notebook outlet. Several wind guide sleeve can be compatible with the market of different heat sink notebook computers, consumers do not have to worry about the radiator is not compatible, not matching. 4. Charm blue light, can be opened, can be turned off, can be switched. 5.Multifunctional liquid crystal display screen. 6.Ultra mute, small enough, thin enough, strong enough! Specifications Product size: 155*82*40.5mm Fan size: 75*75*25mm Product weight: 250g Fan speed: 900-3500 + 10%RPM Maximum air volume: 23.35CFM Rated voltage: 5V Rated current: 0.35 + 10%A Input power: 1.75W User tips Slow down button: Pre once, the manual mode is activated, Pre again, the speed began to decrease. Accelerate the button: Pre once, the manual mode is activated, Pre again, the fan speed increases. Manual/automatic: mode switch button Pre once, Manual / automatic mode switch Pre 2 seconds, switching speed / temperature display Decorative Lights /: power switch button Short pre, decorative lamp on / off Pre 2 seconds, shut down or boot Begin to use, in order to fast cooling, open to the largest (3000 RPM), temperature drop down, About 15 minutes, transferred to the minimum (1500 RPM) remains constant, so that we can keep in a reasonable working temperature, and can prolong the service life and lower noise. Common problem: Q: power supply way? The power cord length? A: use USB 5 v power supply, wire about 60 cm long. Q: this product has several silica gel set? A: in order to meet the requirements of different computers, configuration of four different sizes of silicone sets