The CBL31 WLS is a professional boundary layer microphone for wireless use. It is based on a heavy-duty tabletop mechanics and includes the well-known cardioid capsule CK31 from the DAM Series. Due to its heavyweight, it is very well shock-absorbing and holds the microphone firm on the place. Various AKG pocket transmitters fit into the housing to transform the station into a complete wireless solution. A rugged mute switch (more than 25.000 switching cycles) controls the microphone and an LED bar to clearly show the status. A 3.5 mm input jack plug allows the connection of either up to 4x AKG CBL410 or a laptop to transmit the audio signal of a presenter to the local PA system.