... , and widely used for theft prevention, after-hours surveillance, home security Camera specification:~ 2.4GHz WIRELESS CCD CAMERA / 1 / 3 SONY CCD~ Horizontal Resolution : 480Line ... , Built-in MicrophoneMonitor Specification: 1. 2.4GHz wireless recordable receiver, USB2.0 port.2. 2.414GHz, 2.432GHz, 2.450GHz and 2.468GHz 4 channel receiving with ...