Okay, so imagine you have a camera that can move in different directions and zoom in really close. This is called a pan tilt zoom camera.
The "pan" part means that the camera can rotate left and right like when you turn your head. The "tilt" part means that the camera can tilt up and down like when you look up at the sky or down at the ground. Finally, the "zoom" part means that the camera can make things look closer or farther away.
So, if you wanted to look at something way up high, you could tilt the camera up. If you wanted to see something far away, you could zoom in. And if you wanted to see the whole room, you could pan the camera left and right.
Overall, pan tilt zoom cameras are really cool because they can move and zoom in ways that regular cameras can't, making it easier to see things that are far away or hard to reach.