VHF Extension Speakers Surface MountPart Number: MB-41B A stand-alone 4 VHF extension speaker that's completely waterproof, with stainless steel grill and mounting bracket, ABS housing and polypropylene cone. 10W Maximum Power Handling. Comes equipped with a 10' lead wire and mini-plug.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: 20W/pairSpeaker Impedance: 4 ohmFrequency Range: 1K to 10K HzWeight: 1.05 lbs per SpeakerSPL: 83 dB+/-3 dBOverall Dimensions: 2-15?16 x 2- 3/4' x 1-5?16 (74mm x 69mm x 33mm)