DVR Spy Cameras: Mr. John losses thousands of dollars weekly in his DVR Spy store. Whenever his store manager gives account details, they never add up. After realizing that he has been losing so much money, Mr. John planted a Mini Spy Camera and Pin Hole Spy Camera in his shop and placed a sign on the wall saying this shop may be monitored by DVR Spy Cameras. The discovery of Mr. John was astonishing, with implementation of the mini spy DVR and video spy cameras. His monthly sales report jumped to about 35% increase.