This is a 2 TDC-15 mini camera by Omni.
The camera is silver and features a button on the top, a square grey screen on the back, a look through a square that goes through the camera, and a sliding compartment for the batteries.
It measures about 2" high x 3.5" wide x 0.5" deep.
It uses 3 AAA batteries which are not included.
The camera is in good pre-owned condition and is untested.