* 2.4GHZ, High quality Color CMOS sensor for crisp, clear images

* Built-in microphone for audio monitoring

* 4-channel operation allows multiple (1-4) camera systems (optional)

* Long operation range: up to 100 m clear line of sight or 30 m throug walls/ceilings

* Camera with AC or Battery operated for portability

* have six LED light for night vision.

* metal crust housing with adjustable focus lens

* Easy to install: wall/ceiling mountable

* The receiver have auto-scan channel function after you press the channel switch button until the all four channel LED indicator light flash.