hidden Spy Button Cam DVR - Wireless Shirt Button Spy Camera with Microphone - Features Image Device: 1/4 Inch Sony CCD Wireless Button Spy Camera With Microphone Sensor Type: HQ CCD Sensor Synchronization System: Internal Backlight Compensation: Auto White Balance: Auto TV system: PAL 628 x 582 Horizontal Definition: 480 TV Lines Angular Field of View: 90 Degrees Transmission Frequency: 1.2 GHz spectrum Built In Globle Free Shipping direct from manufacture Learn More