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Poly-Planar MB-21-W External Speaker, 2.75" Bracket, White,Compact VHF extension speaker, white, Mfg# MB-21-W, 2.75 inch square speaker with mounting bracket. Not music quality, not boxed in pairs.Features of Poly-Planar MB-21-W External Speaker, 2.75" Bracket, White, White compact vhf extension speaker NOT music quality, not boxed in pairs 2.75 in..

Poly-Planar Mb-21 8 Watt Vhf Extension Speaker - WhiteMB-21 8 Watt VHF Extension Speaker - WhiteThis compact marine communications speaker includes a stainless steel mounting bracket and stainless steel grillThese waterproof communication speakers can be mounted where you can hear your VHF radioFeatures:completely waterproof and corrosion-proofFeat..