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 temperature 1 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 effectively Vertical 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 top Built-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: 5V Input current: 3A Fan power consumption: 0.3W Fan revolutions: 1 mode 5300 revolutions; 2 modes 4800 revolutions; 3 modes 4000 revolutions Size: 15.5x15.5x3cm Colour:black Material:plastic Package Contents: 1 X Cooling Base 1 X USB Cable Only 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.