VHF Extension Speakers Surface MountPart Number: MB-21B This compact marine communications speaker includes a stainless steel mounting bracket and stainless steel grill. 8 watts Maximum handling power. Comes equipped with a 10' lead wire and mini-plug. These waterproof communication speakers can be mounted where you can hear your VHF radiotelephone.FeaturesCompletely waterproof and corrosion-proofFeatures stainless steel grills, sturdy plastic frames, polypropylene speaker cones and teflon-coated wiresIdeal for use as a VHF remoteAvailable in black or white color speakerSpecificationsPeak Power Handling: 16W/pairSpeaker Impedance: 4 ohmFrequency Range: 1K to 10K HzWeight: 0.35Lb per SpeakerSPL: 83 dB+/-3 dBOverall Dimensions: 2-15/16" x 2-3/4" x 1-5/16" (74mm x 69mm x 33mm)