LYD W203I2 2.4GHz Wireless Kit with 2 Spy Mini Cameras 2.4GHZ wireless SPY camera kits ,100m transmission withoutlock mini design,audio and video, upto 4 cameras Camera:2.1x1.4x1inch,6.3ounce,Receiver:3.6x1.8x4.7inch,4.2ounce