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Coaxial cable too short
"This antenna was designed for a car …. . You should probably write that somewhere on the packaging"
HG S300 - Dynamic External CB Speaker with Noise Filter
Discounts for Military, First Responders, Teachers and Students through
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Discounts for Military, First Responders, Teachers and Students through
See Terms
Buy direct from Cobra
USA-based support
Price match promise
Free shipping over $80
Simple returns
Overall rating: 4.392694 / 5 from 219 reviews.
AI Generated Review Summary
The HG S300 Dynamic External CB Speaker by Cobra offers a powerful 15-watt handling capability and a 4-inch speaker with a 5.5 oz. magnet. Customers appreciate its noise-canceling filter for clear audio, shock-resistant construction, and metal mesh grille. The installation process is easy, and the magnet mount is sturdy. The product fits perfectly in tight spaces and has a high-quality build, though some users report mixed reception experiences.
Summary topics
- Installation Ease: 4%
- Shipping Speed: 4%
- Customer Service: 3%
- Product Unit Quality: 6%
- Fit Precision: 4%
Review topics: ["shipping","fit","quality","difference","size","value","service","problem","mount","cord","sound","works","communication","power","battery","price","use","radio","antenna","unit","speaker","range","install","reception","cobra","box","place","room","dash cam","device"].
Review highlights
- "Great reception once you tune it in, nice magnetic fit, all around good sound quality" —
- "Great antenna for quick and easy installation and transfer from one vehicle to another." —
- "made the CB work better for my truck drivers quick service highly recommend product and company" —
Reviews
size matters
"recently bought this with my citizen band radio after realizing that it didnt come with its own in the box then i looked at the local truck stop just to find out that they were typically 20- 40 dollars more for the same size! i just hope that it will be able to perform just the same or better for being cheaper. the installation was really easy and wiring up took an pinch of common sense and I was good to go."
Excellent
"Quick shipping and nice looking radio"
Better than the 18"
"I bought a small CB to have in traffic issues and with the 18" I couldn't get any clear reception. I bought the 42" and the first one came and was damaged by shipper. I can get reception now. Just have to be conscious of the height when attached. Stores easily in the back seat."
Good product
"Good product"
💯
"WORKS GRATE ON EATHER ONE OF MY CARS 🚗"
Antenna SWR's
"Can't tune it! SWR are all over the place."
42 inch magnetic Antenna
"It sticks to car roof but won't tune , no matter what hs done,, Cobra products are good products though, the company personal are great to work with"
"It's simple to setup and take down. The fastener holding the whip doesn't do anything."
Not much range ! ☹️
"Not much range ! ☹️"
Q&A
- will this work with a 75wxst
- Yes, this will work. Thanks!
- Can this be used with a Cobra Select MR F77B GPS marine radio?
- This speaker is designed for the CB's, and will not be compatible with the Marine Radio. It operates using a 3.5mm audio jack.