SpyFinder is an easy to use compact battery powered device allowing visual detection of any hidden or spy camera The only detector on the market that can detect cameras not in operation It detect wireless and wired cameras by looking through the viewing port and scanning any room, Personal or professional use, Works on most camera types CCTV digital auto focus cam corders and pin hole, Dimensions: 4 1/2? x 1 1/2? x 3/4?, SKU: KJB204