Hidden Cameras make excellent addition to any Security Camera System. Smoke Detector Hidden Cameras and Motion Hidden Cameras are our most popular Hidden Cameras. Monitoring employees, customers, nannies and loved ones are several examples of where Hidden Security Cameras may be an excellent choice. Some of our hidden cameras have built in audio, so you will have both video and audio captured and stored for future use. You can utilize audio for employee training and opportunities and to have evidence should a crime or injury occur. The best part about hidden cameras is that no one knows they are being recorded.