The legendary ST-930 UHF microphone is the latest generation of Behringer company--UHF PLL--synthesized units, Representing a major breakthrough in both price and performance, it offers the superior performance, convenience and operational advantage of a top frequency agile UHF wireless system. The system delivers 32 users selectable channels within any of several available 25MHz wide bands in the uncluttered wide open high UHF range  (790-865MHz ) for optimum clear channel capability in any position. - Two UHF wireless handheld Microphones with balanced output. - Multi channel high band anti interupting wave, thereby eliminating interference successfully. - PLLsynthesized fixed, working separately even if used even at the same time. - Companding design to expand effective range. - Eliminates feedbacks and noise. - Sensitive receiving design with antennas positioned at the front of the receiver. - Perfect performance gear for church, musical concerts and many more. - Operating distance : 300 meters - Working perfectly