PS4 Slim console Temperature cooling fan , it will begin to work
when the temperature above 40 ℃ , it can saves the electrisity , if you
want to try its Specialty, please use the hair dryer , it is funny but
also obvious , thank you .

 Connect the power cable correctly.

Turn the switch to “ TURBO” or “SLOW”.

This product stops to work when turn the switch to “OFF”.

DC power port: DV 5V

Three-gear switch: OFF for stop, TURBO for high speed fan working
when the temperature is over 40 ℃ ， and SLOW for low speed fan working
when the temperature is over 40 ℃.

HP4S009 – USB External 5-Fan Cooling Fan Turbo Temperature Control for Playstation 4 PS4 Slim