[PREVENT SWITCH FROM OVERHEATING] The cooling fan keeps your for 1/2 stay cool in the dock station, it is good enough to lower the temperature and protect the Switch from overheating, now you don't have to worry about having to pause due to overheating during , you can play for multiple hours as much as you want. [LED DISPLAY WITH FAN SPEED & TEMPERATURE] The digital LED display shows both the current rpm of the fan and the temperature of the air exiting the console in degrees celsius. There are three buttons for easy control: Increase the fan speed, power on/off the fan, decrease the fan speed. [ADJUSTABLE FAN SPEED] The adjustable fan speed from min 510rpm up to max 6000rpm of the radiator for is perfect for heat-exhaust and ventilation. When the fan speed is under 2400rpm, it is nearly no noisy, unless the fan speed is above 2400rpm, it produce some fan sound. [MICRO-USB CABLE & FIXED PAD & JOYSTICK CAPS] The package contains a Micro-USB cable, a fixed Pad and 2 pieces joystick caps, just plug the USB cable into the back of the console stand in-between the and power cord to get power, insert the fixed Pad between the Switch and the docking console base to stable the cooling fan, the sponges on both sides of the pad are not only for anti-slip effect but also prevent your Switch from being scratched. Color:Black Material:plastic Package Contents: 1 * cooling fan 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.