... 3..Microphone head:entire steel, Wide frequency response wire microphone1.Impendance: 600 OHM±30% 2.Polar ... head:entire steel, 6.Cartrige:hypercardioid, specially wire frequecny response, Anti-shake 7.Switch;no noise ... , can use 10 thousand by test . 8.body:zinc-alloy die-casting,facade ... *5M,New Pvc flexibility material , New brass wire . Packinginner gift box :255mm×130mm×65mmouter carton ...