Super Cardioid 2.4GHZ Shotgun Microphone and Receiver With Long Battery Life Comica, a maker of professional audio equipment for photography and videography, has announced the launch of the Comica CVM-VM30, a 2.4GHz Super Cardioid Condenser Wireless Shotgun Microphone. The CVM-VM30 is an innovative multifunctional microphone that can be used as...