16-CHANNEL Uhf Pll Synthesized Wireless Mic 16 user-selectable channels prevent interference with existing wireless mics Handheld mic transmitter in a metal housing with internal antenna for optimum aesthetics and durable long life Features the Nady DM-10D unidirectional neodymium dynamic cartridge for optimum true sound, maximum feedback rejection and minimal handling noise Rack-mount receiver with retractable front-panel dual antennas Unique snap-out panel locking tabs for single or dual receiver optional rack-mount