USB Polygraph Machine New Professional version of the USB Polygraph. Police Edition with Improved Technology. Used by law enforcement around the world. A real polygraph or lie detector machine for home use. Featured on TV around the world
Wearable Smiley Face Hidden Camera Video Resolution and Video Format The resolution of this mini video camcorder is 720x480 in AVI video format. Operating Battery Life Time This tiny spy cam can work for about 100 minutes continuously after fully charged.