Zoom cameras are really box cameras with a mechanical zoom lens. They can be zoomed from the DVR or the mobile app (depends on your DVR). What is great about these cameras is that you can zoom when you need more clarity and zoom back out automatically without adjusting the camera physically.
This Zoom camera is security surveillance camera with a vari-focal 3.6 to 97.2mm 27X zoom lens. These unit features 420 TV Lines and are RS485 control enabled. A Box style camera is typically used for indoor scenerios.