The (G403) Guardian Series of baby monitors from Uniden allows you to expand up to four cameras. These portable indoor cameras transmit up to 500', come with a built-in Lithium Polymer (Li-Poly) rechargeable battery that lasts up to four hours, and provides 12 infrared LEDs so you can see up to 20' in the darkest conditions.

• Uniden Weather Proof Video Surveillance Camera, White (GC45W)
• Uniden Guardian Advanced Wireless 7-Inch Screen Video Surveillance System with 2 Outdoor Cameras - Black (G755)
• B007UNHSV4
• B008GULDD4
• B002G12OBO