Astak Wireless Security Camera (CM-818C2) CMOS wireless security camera set Weatherproof Night Vision Clear color image (380 TV line resolution) Wireless receiver supports up to 4 cameras Remote control included Built-in microphone and switchable channel comes with 2 cameras in the box CMOS wireless security camera set Weatherproof Night Vision Clear color image (380 TV line resolution) Wireless receiver supports up to 4 cameras Remote control included Built-in microphone and switchable channel