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Signal 21 Speaker Microphone
Signal 21 Speaker Microphone

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Connectors Available BK, H1, H3S, H4, H4, K, K2, M, M12, M3, M4,
M6, M7, MC1, MC3, MID, S3, S4, Y3
Dimensions 2.25" Tall, 2.25" Wide, 1" Deep
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Product Code: SIGNAL21

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Description Connector Compatibility
Signal 21 Speaker Microphone

The Signal 21 microphone has been manufactured using the highest quality specifications to be water, wind dust and impact resistant. The radio connector cord includes a strand of Kevlar® to insure durability and reliability. The heavy-duty strain relief means longer service and less down time. This speaker microphone is made to withstand all types of use; public safety and wild land firefighters. It has a sturdy swivel metal clip that can be attached in any position on your clothing or tactical vest. A covered audio jack allows conversations to be diverted directly to your ear using any of our listen only earpieces. Lightweight at only 3.6 ounces, yet provides tremendous durability and fits perfectly into the palm of your hand.

IP 54 Rating

Average Customer Review: 5 of 5 Total Reviews: 11 Write a review.

  1 of 1 people found the following review helpful:
Great product February 26, 2018
Reviewer: Adam from Oklahoma City, OK United States  
This product is the one the best on the market. It has survived 3 tours in Iraq and been to every conner of the earth. I have yet to find a better product out there. My product went up in Afganastain last . The product was used for 14 years of abuse. That's only becuse it took a direct hit from a R.P.G. or rocket propelled grenade. Even before it was still working pior. The people at Code Red know how to make a product. I have jumped as high as 40, 000 feet. I've only seen military issue products compare to this one . Keep up the great work. Hopefully it last anther 20 years.

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  0 of 0 people found the following review helpful:
Great service, great product February 26, 2018
Reviewer: Keith Eckensviller from North Bay, ON Canada  
Ordered a hand mic for my portable two way.  The hand set was exactly what I wanted.  It even came with a "bonus" listen only ear piece.  Thank you

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  0 of 0 people found the following review helpful:
Excellent customer service February 26, 2018
Reviewer: Ben Smith from Cary, NC United States  
After I purchased my items, they contacted me to let me know about a known possible issue. I ended up getting it anyway and it works like a charm but I still appreciate their level of effort to make sure I was completely satisfied!

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  0 of 0 people found the following review helpful:
Very Nice February 26, 2018
Reviewer: Charles Spicer from Blacksburg, VA United States  
Very good speaker and mic, the audio port and the sounds squeaks a little but works clearly and nicely. The audio port seems to only work in the left ear of whatever i plug into it. For its price it is incredibly hard to beat.

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  0 of 0 people found the following review helpful:
Signal 21-K Speaker Mic For Kenwood Is Excellent February 26, 2018
Reviewer: Robert Ballard from Aledo, TX United States  
I purchased the codeRED HEADSETS Signal 21-K Speaker Mic to replace the factory Speaker Mic I bought for my BaoeFeng BF-F8HP HT radio that produced garbled audio from the microphone.  The codeRED HEADSETS folks ensured the Signal 21-K would fit my inexpensive "non-Kenwood" BaoFeng HT radio before they shipped it to me.  The packaging was excellent and it arrived on time.  The audio quality of the speaker is significantly better than the speaker on the BaoFeng radio itself.  My first use of the Signal 21-K Speaker Mic's microphone demonstrated that the audio received on the other end believed I was speaking on a much more expensive mobile radio instead of my tiny BaoFeng HT.  The codeRED HEADSETS team rates "Excellent" in customer service and the Signal 21-K Speaker Mic is an awesome upgrade to inexpensive HT radios.  I highly recommend both!

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