In the video, a person is holding a smartphone in their hand, and the screen of the phone is displaying the speed of a fan. The fan is spinning at a speed of 1174 RPM, and the person is holding the phone up to the fan to measure its speed. The phone is displaying the speed in both RPM and Hz. The fan is located in a room, and the person is standing in front of it. The fan is large and has a metallic finish. The person is wearing a black shirt, and the room is well-lit.