KREZT MC-4U Wireless Conference

The KREZT MC 4-U is a wireless conference system with 4 mics and 1 receiver in one package ( including a solid hardcase) which has a tunable frequency settings, and perfect for a medium to large meeting room as more than 100 units can be used simultaneously at a time. Specification : Frequency range : 740-790MHz Modulation mode : FM Audio response : 50-18KHz Adjust range : 50MHz Channel : 200 channel Channel spacing : 250KHz Frequency stability : ± 0.005% Dynamic range : 100dB Max modulation range : ± 45KHz S/ N rate : > 105dB T.H.D : d0.5% Working temperature : -10° C ~ 40° C Receiver specification : Receiver way : double-coversion superheterodyne Middle frequency : the first frequency : 110MHz ; the second frequency : 10.7MHz Wireless connector : BNC/ 50 ohm Sensitivity : 12dBµ V ( 80dB S/ N) Sensitivity adjust range : 12~ 32dBµ V Spurious suppression : e75dB Max audio output : + 10dBV Transmitter specification : Antenna program : features a transmitter with 1/ 4 wave whip antenna, microphone built-in spiral antenna Output power : HI power 30mW ; LOW power 3mW Spurious suppression : 60dB Direction : cardioid Power apply : AA 1.5V x 2 Battery life : more than 10 hours is 30mW ; more than 15 hours is 3mW