The M40 is a miniaturized condenser microphone with a fully integrated preamp designed with very high sensitivity for distance miking. The primary applications for the ceiling mounted M40 include Video amp; Teleconferencing (VTC), distance learning, hospital rooms, surveillance and ambient room miking. Applications that utilize AVB transport can deploy the M40 audio signal over a single Ethernet cable. The M40 has complete immunity from RF interference caused by cell phones and GSM devices. The M40, which comes with a cardioid capsule, is also available with hypercardioid or shotgun capsules, allowing for the microphone to be used in a wide variety of applications. The M40 is easy to install requiring only that a 5/8 inch hole be drilled in the ceiling with no additional tools required. The cable assembly is equipped with a terminal block connector. For installations where plenum rated cable is to be used a UL rated, metal plenum junction box is available.