... 1,Four channel diversity wireless receiver 2,four handheld mic,clip or table mic 3,ISO, ... ,RoHS Professional 4 Channel UHF Wireless Microphone SystemFeatures:1.Four channel diversity wireless receiver2.Includes Four UHF Wireless Microphones3.200 adjustable frequencies with ... should be : 740-790MHz 2. 4ch handheld microphone with one receiver: Handheld Mic x 4 pcs; you may have othery type ...