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.Features Completely waterproof and corrosion-proof Features stainless steel grills, sturdy plastic frames, polypropylene speaker cones and teflon-coated wires Ideal for use as a VHF remote Available in black or white color speaker Specifications Peak Power Handling: 16W/pair Speaker Impedance: 4 ohm Frequency Range: 1K to 10K Hz Weight: 0.35Lb per Speaker SPL: 83 dB+/-3 dB Overall Dimensions: 2-15/16" x 2-3/4" x 1-5/16" (74mm x 69mm x 33mm) Specifications: Watts: 8 Mounting Style: Bracket Waterproof: Yes QTY: Single Box Dimensions: 2"H x 5"W x 8"L WT: 0.5 lbs UPC: 731128002118 Quick Guide (pdf)