MXT400 MicroMobile®
2-Way Radio

Max out your GMRS performance with the Midland MicroMobile® MXT400 two-way radio. With 40 Watts of broadcasting power, this radio is the most powerful GMRS radio made by Midland. Especially useful on massive, sprawling properties like farms and ranches, this radio utilizes 15 GMRS channels and 8 high powered repeater channels. For the best performance, use with an antenna and mount.

NOTICE: *Antenna, cable, and antenna mount sold separately.




Full 40W Radio

8 repeater channels for increased communication range

15 high power GMRS channels

Radio Dimensions: 1.6" x 5.5" x 7.3"

142 privacy codes

Silent Operation


What's in the box

  • MXT400 MicroMobile 2-Way Radio
  • Mount with Hardware
  • Microphone
  • 12V Power Cord
  • Owner's Manual
  • Quick Start Guide

Product Support


MicroMobile Two Way Radio is rated 4.6 out of 5 by 5.
Rated 5 out of 5 by from I just installed this radio in my truck. Very impressive radio. The range talking to my wife who was using a Garmin Rino inside the house and me on the MXT400 on high power was about 7 miles in an urban setting. One of the reviews stated privacy codes did not work. I found that they do indeed work. Follow the manual on setting the codes. I suspect people are using the DCS codes vs the CTCSS codes where you look at the manual and cross reference the privacy code to the frequency you must select under CTCSS. Works perfect.
Date published: 2017-09-29
Rated 5 out of 5 by from This radio blew my mind the first time I used it. The most range I’ve ever gotten from a GMRS radio. I was able to talk to a friend with another MXT400 who was over 10 miles away in a decently wooded area. Don’t forget your FCC license!
Date published: 2017-08-23
Rated 4 out of 5 by from Jury is still out, but,,,,,,,,we'll see TX/RX distance is great! PL code problem w/ other radios! We use 15.7 or 462.55 PL 85.4, we have found either the MXT400 has an issue or our other radios have an issue, not completely sure, just being honest. The radio so far has been impressive, however when we use PL codes Reception on the MXT400 becomes sporadic, sometimes it works and then other times it doesn't, for now we are using just the channel with no code, the radio works great this way, very impressive distance, it is connected to a Diamond 50a fiberglass whip and SWR is fantastic. We did try a completely different radio to test the PL problem and the MXT400 worked fine when contacting a Motorola, but Baofengs not so good for some reason? Now we just need to find HTs that will work with the MXT using PL codes.
Date published: 2018-01-05
Rated 5 out of 5 by from I’ve been using 2-way radios for years and if you count the walkie-talkies I played with as a kid then pretty much most of my life. The MXT400 is by far the best 2-way radio I’ve ever used! The range is remarkable and the features are great. I tested these out with a handheld GMRS radio and even though we were using mobile and handheld we got a lot more range than just two handhelds. I was several miles down the road before my wife and I lost clear signal (and she was indoors!). Imagine two 40W mobile radios talking! I live in an urban area and was very surprised about the range and quality of this radio. This radio packs a punch! I plan on getting more of these radios to expand our use. If you’re a prepper, travel a lot, or just want some on the go radio fun you need to get this radio! If you’ve ever installed a CB in your car then you’ll know what to do. It installs the same way. Using the scan feature, I’ve found that there’s some channels with people talking so come join the radio community. Pros: Range, lots and lots of range! Voice quality. Features. Simple to learn. Easy to install if you’re CB radio savvy. Still easy either way. Works with other handheld and mobile GMRS radios even of different brands. Makes me not rely on a cell phone so much. Cons: The only thing I can say against it is even though it’ll work with other brands of GMRS radios, some of the features don’t carry over. I tested this radio with a Motorola Talkabout T460. Midland and Motorola use different privacy codes schemes with their radios. While using privacy codes from one brand or the other it hindered communication. But if I put them both on the same channel without privacy codes they worked perfectly. I’m not saying that this makes either radio bad but it’s something to make note of. I plan on getting Midland brand handhelds anyway so I can use all the privacy codes. I’ve looked up info on the internet that there’s some privacy codes that may work together but if you’re new to the radio community just play it safe and just go 100% Midland brand. (That’s my own opinion. Midland didn’t pay me to say that.)
Date published: 2017-03-24
Rated 4 out of 5 by from Functionality works great. Features are nice. The only issue I have with it is that it is only 35W, not the advertised 40W, according to my power meter. I would still buy the radio, but please note that it didn’t put out the rated power.
Date published: 2017-10-24
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I purchased a mxt400 on Amazon and it seems to be missing the microphone mounting hardware. there is no bracket and the metal hardware on the back of the microphone is not like other microphones on CB radios I have had. Where can I get the hardware?

Asked by: Dave923
Hello, the MXT400 does not come with a mounting bracket for the microphone. The microphone is equipped with a metal ring, as shown in the product photo. This ring can be used to hang the microphone in various ways in your vehicle per your needs. You can also purchase a Mic-Bak.
Answered by: Midland Radio Corporation
Date published: 2018-03-12

I am interested in using this product as a “base station” inside our cabin to communicate with handhelds.  What do I need to purchase so that I can plug it into a wall socket for power?

Asked by: Rickjt
You would need an external power supply .The MXT 400 would require at least 15 amp 12v power supply. At this time Midland does not sell this as an accessory.
Answered by: Midland Radio Corporation
Date published: 2018-02-19

Does this act as a repeater for other radios OR can it just connect to a repeater itself? I'm new to all this stuff so sorry if it's a silly question. Are there handhelds that are repeater capable as well?

Asked by: NDLM
It can connect to a repeater itself but not to other radios. There are not any handheld radios currently on the market that are repeater capable.
Answered by: Midland Radio Corporation
Date published: 2018-02-19

Which one of your hand held radios would pair best with the MXT400 for distance and clarity

Asked by: sammike
A 5-Watt GMRS Radio would be best. Either the X-Talker T71VP3 or GXT1000.
Answered by: MidlandUSA
Date published: 2018-03-07

What is the recommended antenna for the 40W radio?

Asked by: AddyATG
The Midland MXTA11 pulls 6dB of gain for 4x the power. Check it out, it's what I use for my MXT400.
Answered by: Eman
Date published: 2018-01-26

How many amps of current does the radio draw on transmit and receive?

Asked by: Moose

Why is it all makers advertise 5w/15w/40w, but they never are actually the wattage they advertise for?

Asked by: WRAV269

will the antenna from the 105 and the 115 work for the 400? what rating is the factory antenna rated for?

Asked by: WRAV269
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