This is another unique surveillance equipment, especially good for office use. It can be put in any place and never draw any attention. It is a high quality miniature video camera hidden inside a computer speaker with a built in transmitter. The remote control switch optional can be added in this model for turning on and off the camera from 150' away. All cameras and transmitters are mounted inside the speaker. This item is totally concealed and fully portable. Without drawing any attention. The camera is very easy to operate, just plug and play.