Poly Planar MB41 10-Watt VHF Extension Speaker
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10 watts of power
4 ohm impedance
4.61"H x 4.57"W x 2.09"D
This waterproof communication speaker from Poly-Planar features 4 ohm impedance and 5 watts RMS power. Perfect answer to hearing your VHF communications without exposing your entire radio to the elements. Two-year warranty. Available in black and white.