Button Covert Spy Cameras 
VisionTech VCBPH Color Button Camera VCBPH

Perfect for operations where a total covert operation is a must, this unit will allow the user to integrate a micro camera into their own clothing. Complete with plug and play connectors, this unit will easily integrate with a camcorder or 8mm VCR for easy recording.

1/4" Panasonic COLOR CCD Sensor, 420 TV Lines,Button Camera, 3.7mm Pinhole Lens, 0.5 Lux/F2.0, 12VDC