MXT400 MicroMobile®Two-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.

*Compatible with Midland FRS/GMRS walkie talkies.

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

FREE shipping on all orders over $100.



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 4.7 out of 5 by 49.
Rated 5 out of 5 by from One of the few legal (FCC part 95) radios. I received this radio 2 weeks ago. It is temporally using a Tram 1170 UHF mag mount antenna. The SWR is at 1.1 to 1. (Previously tuned to GMRS frequencies. With the antenna centered on my roof. Ford f250. I was using it on Long Beach Wa. On low power I was consistently hitting a repeater in Astoria Or. I had tried it on medium pwr, 22 watts, but that was not necessary as long as I was on the the beach. This is a distance of approximately 20+ miles. I do not know the height of the repeater in Astoria. Hope this helps. Keith T.
Date published: 2018-04-05
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 Excellent Midland thank you for finally creating a decent user friendly GMRS TYPE ACCEPTED radio. Seems to be sturdily built for a bit of rough handling just don’t get it wet. One improvement would be a software update to allow some storage of multiple repeaters with same frequency different power and tones. This would make my trips back to New York easier to switch back and forth same repeater freq different tones. Not going to reduce stars though. Good rig.
Date published: 2018-04-05
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 5 out of 5 by from MXT400 - Awesome Radio I bought this because several other members of our Jeep club have GMRS radios. I wanted a radio that had high watts, because there are times when we are overlanding that I want that extra power for further range. I have it installed in the Jeep along the right side of the center console and liked the quality and reliability of it that I purchased a Midland CB to communicate with the other members that don't have GMRS.
Date published: 2018-09-14
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
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 2 out of 5 by from Feature packed. But missing vital items So far, not sure if it's really any better then the MXT115, which I purchased right after t he 400. It's a bigger radio so if anything, the extra power is fine even if it's missing what I consider one of 3 important items it SHOULD have come with. 1. No 12v accessory plug/cable. Sure, it has a fused cable but seems someone forgot to pack the accessory plug end of the cable. This comes with the MXT115 2. No antenna. Ok, again, the MXT115 comes with one, this does not. I used both radios on my purchased antenna. They seem the have the SAME distance. 3. 400 has no WX channels. Again, the MXT115 does. Why this feature was ignored kinda makes the 115 a better option for outdoor use. Just saying, the radio itself is fine. If all you care about is the power, and ok with picking out and buying your own radio, go for it. But IMO, the MXT115 is a MUCH better deal, has about the same range from my tests and comes with a much better out of the box experience and features.
Date published: 2018-06-27
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How much current does the radio draw at full output power?

Asked by: K6MLE
8 amps is typical and 10 amps is max
Answered by: Midland Support
Date published: 2019-08-05

Does the MTX400 have a weather (NOAA) channel?

Asked by: MMYoung57
It does not
Answered by: Midland Support
Date published: 2019-06-17

Does any of the micro GMRS radios, also be able to talk on FRS channels? or is it just GMRS channels?

Asked by: Newbie
If you mean the FRS channels 8-14 that would be a negative - the FCC does not allow for radios to transmit over .5W of power on those channels nor are you allowed to have radios with detached antennas on those channels. All FRS radios can access channels 1-7 and 15 - 22 however, so you are able to communicate with FRS radios as long as you are using those!
Answered by: Midland Support
Date published: 2019-01-11

Does this radio act as a repeater between 2 (or more) handheld talkies? Ex. Truck parked at top of hill. One talkie at bottom of hill on 1 side and another talkie at bottom of other side. Talkies can only reach truck radio but not each other.

Asked by: Krispyk
Negative, the radio can use repeater channels but is not a repeater itself. You will be limited to the range on the handhelds due to their transmitting power. The example you provide is exactly correct, the power of the MicroMobile is much higher than that of the handhelds, so it will have longer range. The handhelds are still line of sight, so the hill is causing the signal to be blocked.
Answered by: Midland Support
Date published: 2019-05-31

Can I mount the antenna for the mxt 400 close to my cb antenna without effecting the performance? I am looking to use the magnetic mount with a 6db antenna and the mxt 400 radio. Being used in a jeep wrangler.

Asked by: tinycfd7
As long as they do not transmit at the same time, that should be fine!
Answered by: Midland Support
Date published: 2018-12-01

When mounting, should I avoid direct avoid top of dash?

Asked by: Dankenstein
Depending on where you are in the USA, you might want to bring it out of direct sunlight (desert areas) but for the most part no that is not a concern!
Answered by: Midland Support
Date published: 2018-10-19

Will a mic from a mxt105 work on the mxt400?

Asked by: Meaningdeer9137
Negative, they have different modular plugs and the wiring is different.
Answered by: Midland Support
Date published: 2018-11-16

Will this radio work with a radial Larson om 450 antenna?

Asked by: Clint
Hey Clint, We would recommend an antenna tuned somewhere in the GMRS frequency set; it might work, but it’s not ideal. Of course, if it’s tunable, you can cut it and tune to it GMRS frequencies and it will work fine. But again we would suggest buy one already set for those frequencies! MidlandUSA
Answered by: Midland Support
Date published: 2019-06-08
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