Type:ActiveUse: Computer, Home Theatre, Karaoke Player, Mobile Phone, Stage, OtherChannels:otherSpecial Feature:Mini, Portable, WirelessUsage: KaraokeColor:SilverVC Diameter:25.4mm,25.5mmVC Bobbin Material: KSV/NSV/ASV/TILVC Wire:CCAR/CCAW/ALR/SVDiaphragm Material:Titanium Show More