i3 's Mo-1 outdoor omnidirectional microphone features an attractive and durable metal housing that is dust- and waterproof. With a 5 meter (16 ft) sound pickup radius and built-in Ambient Noise Cancellation, Mo-1 microphone delivers exceptional quality sound. When used together with i3 's Annexxus 65RM/75RM camera, Mo-1 microphone can be used for two-way audio communication between the camera site and Server or Client site. This microphone can be discreetly wall- or ceiling-mounted indoors or outdoors, up to 300 m (1000ft) away from the Annexxus camera, for a wide range of applications, including schools, gas stations, transit, and retail.