3 speed adjustable touch switch:3 speed silent mode: The switch key lights up in orange, and the 1-speed silent mode can be used for silent cooling at night or when quiet is required;2 speed normal mode: the switch key lights up in blue. In normal mode, the can continue to work for 8 hours, the cooling rate, and keep the at normal temperature1 speed super mode: the switch key lights up in green, the wind value increases, the air exchange rate is increased at high speed, and the is more effectivelyVertical air flow channel: Designed for the of the , fits the air flow channels at the four corners of the bottom of the , and cools smoothly from bottom to topBuilt-in three USB ports: After the is connected to the fan, even if the fan is off, the USB port can be used normally without being restricted by the fan switch, and can supply power to other electronic devices such as handles or mobile phones.Voltage: 5VInput current: 3AFan power consumption: 0.3WFan revolutions: 1 mode 5300 revolutions; 2 modes 4800 revolutions; 3 modes 4000 revolutionsSize: 15.5x15.5x3cmColour:blackMaterial:plasticPackage Contents:1 X Cooling Base1 X USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.