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Description
RadioMaster MT12 Surface Radio Controller w/ ER3C-I Receiver - ELRS 2.4GHzThe RadioMaster MT12 Surface Radio Controller (ELRS Version) represents a groundbreaking open source surface radio, and it proudly holds the distinction of being the first surface radio with official support for EdgeTX, ExpressLRS, and the Multi module project. With an impressive ten physical inputs and the ability to manage 16 channels, the MT12 is exceptionally well suited for a diverse range of surface models, encompassing everything from
The RadioMaster MT12 Surface Radio Controller (ELRS Version) represents a groundbreaking open-source surface radio, and it proudly holds the distinction of being the first surface radio with official support for EdgeTX, ExpressLRS, and the Multi-module project. With an impressive ten physical inputs and the ability to manage 16 channels, the MT12 is exceptionally well-suited for a diverse range of surface models, encompassing everything from automobiles and trucks to watercraft. Its remarkable adaptability and versatile operating system set the MT12 apart as a supremely customizable surface radio, poised to excel in nearly any situation.
Note: Battery is not included.
VIDEO: MT12 Surface Radio | The first surface radio officially supported by EdgeTX, ELRS, Multi-module
Features
- Lightweight design (480 grams) and compact dimensions (ER3C-I: 26.118.513.0 mm) for portability and integration ease.
- Dual power sources: 2 x 18650 cells or a 2s 7.4v 5000mah battery pack.
- Supports 16 control channels with an EdgeTX operating system.
- Clear 128*64 Monochrome LCD Display for information visibility.
- Compact design (177.8118.4207.8mm) for easy handling.
- Convenient firmware upgrades through USB or SD card.
- Wide operating frequency range (2.400GHz-2.480GHz).
- Nano-sized module bay for flexible expansion options.
- Built-in USB-C Charging for hassle-free recharging.
- Precise control with Hall-effect sensors.
Specifications
RADIOMASTER MT12 SURFACE RADIO CONTROLLER
- Module bay: Nano size (RadioMaster Ranger Nano Module / RadioMaster RM 4in1 module / TBS Crossfire Nano module)
- Battery: 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included)
- Firmware Upgrade method: Via USB or SD card
- Physical dimensions: 177.8*118.4*207.8mm
- Operating frequency: 2.400GHz-2.480GHz
- Supported protocols: Module dependent
- Operational current: 320mA for ELRS
- Wheel and Trigger sensor: Hall-effect
- Display: 128*64 Monochrome LCD
- Charging: Built-in USB-C Charging
- Operational voltage: DC 6.6-8.4V
- Control channels: 16 as standard
- Operating system: EdgeTX
- Internal RF: ELRS 2.4GHz
- Item: MT12 Surface Radio
- Weight: 480 grams
ER3C-I RECEIVER
- Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER3C-i
- Antenna type: Built-in high-sensitivity ceramic antenna
- Wireless protocol: ExpressLRS 3.3.0 pre-installed
- Battery voltage detection range: DC 4.0 - 35V
- Item: ER3C-i 2.4GHz ELRS PWM Receiver
- Dimensions: 26.1*18.5*13.0 mm
- Power supply: DC 4.5 - 8.4V
- Output channel: 3CH PWM
- Telemetry power: 10mW
- Weight: 4.2 grams
IMPORTANT NOTES
- The DJI Remote Controller is recommended for beginners but NOT required to use the FPV System, since you won't need to set up another receiver. If you don't have the DJI Remote Controller, you will need a receiver for your transmitter. and then bind to your own radio as usual.
- If you do not have the frsky transmitter, please downgrade the version lower than 2.X.X, www.frsky-rc.com for more details.
- Our current frsky receivers default version in 2.XX, requires us to use of the same version of frsky transmitter.
Recommended (Not Included)
- Controller Battery: Lumenier NAV 3000mAh 1S 18650 Lithium-Ion Battery (2pcs)
- 2S Controller Battery: RadioMaster TX16S 5000Mah 2S Li-ion Battery
- Battery Charger: 18650 Wall Battery Charger
Includes
- 1x RadioMaster MT12 Surface Radio ExpressLRS Version
- 1x ER3C-i 2.4GHz ELRS PWM Receiver
- 1x Custom RadioMaster Carrying Case
- 1x 4 Way Joystick Expansion Module
- 1x Dual Switch Expansion Module
- 1x 18650 Battery Tray
- 1x Screen Protector
- 1x Leather Lanyard
- 1x Nano Adapter
- 1x USB-C Cable
- 1x Stickers
- 1x Manual
Featured Videos
VIDEO: This Changes Everything in the RC Hobby! RADIOMASTER MT12 ELRS - Review
VIDEO: RADIOMASTER MT12 - Long Range Penetration Test
VIDEO: RadioMaster MT12: Finally, a modern EDGETX powered radios for ground vehicles!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
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Reviewed in the United States on June 3, 2026
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them.
So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love.
This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs.
They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable.
Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
My dog loves this toy!
Color: Bunny (Gray), Size: Large, Color: Bunny (Gray), Size: Large
High quality, big toy, perfect for a medium to large size dog. After a few months of serious chewing I had to buy another one, but well worth the money! Rocky loves it.
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Reviewed in the United States on June 11, 2026
★★★★★ 4
Great toy but if your dog is an aggressive chewer, please think twice.
Color: Crinkle Chicken (Brown), Size: Large
I received this on May 23rd and on June 8th, after playing with this thing every day, our recently acquired 36 lb dog finally ripped it open and got out all the plastic and the squeaky part. Lily Belle will miss you, chicken.
Lily loooooved this toy! She'd toss it in the air, chew on it, pull it with her teeth etc. but as much as she loved it, we won't replace it. It's just not durable enough for her.
If your dog is an aggressive chewer, you might want to try a different toy. I hate that this lasted just a smidge over two weeks because Lily seemed to truly enjoy this toy.
RIP, squeaky chicken!
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Reviewed in the United States on June 9, 2026