Features:

* 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).

* Have 6 led light for night vision function.

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

* Camera with AC or Battery operated for portability.

* Metal crust housing with adjustable focus lens.

* Easy to install: wall/ceiling mountable.

* This receiver should push the channel select button to choose channel.