Super Mini High resolution Audio SPY Camera
CCTV cameras can be used directly with a standard TV/VCR or RCA video monitor; To view more than one CCTV camera on your TV/VCR you will need a quad or multiplexer;
3) To view on your computer or laptop you will need a DVR card or USB; A standalone system that records is a standalone DVR; CCTV wired cameras can add a 2.4GHz wireless transmitter module,then it can work with wireless receivers.$45.99
