If you need to monitor the outside of your property you will need the wireless Electrical Box hidden camera. Just mount to a building or pole and you're ready to start monitoring. The box measures 4 inches x 4 inches x 2 1/2 inches and is weatherproof. Powered by a 12 hour rechargeable battery pack, no wires or cords to plug in. Includes: • Wireless cameras include FREE 2.4 GHz receiver (a $160.00 value) • All necessary power supplies and battery packs are included. Options: • X-Vision (.003 Lux) is a feature only available on black and white cameras. Allows best possible images in almost complete darkness. Specifications: Image Sensor: 1/3" Sony CCD (B/W) 1/4" CCD (Color) Resolution: 400 Lines(B/W) 380 Lines(Color) Min. Illumination: .05 Lux (B/W) 1 Lux (Color) Lens: 3.7mm Wide Angle Power Required: 12 V DC/110V AC