SKU: 20666137701

RadioMaster GX12 Dual-Band Gemini-X RC Radio Transmitter - ELRS

Sale price$93.60 Regular price$104.00
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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

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Description

RadioMaster GX12 Dual-Band Gemini-X RC Radio Transmitter - ELRSThe RadioMaster GX12 marks a new era in innovation and technology for high performance radio controllers. Designed for drone racing, FPV flying, and video work, the GX12 prioritizes signal strength and reliability, ensuring you stay connected when it matters most. Whether for work or play, the GX12 embodies excellence in drone control. Welcome to the future of radio controllerselevate your RC experience with the latest advancements in open source

The RadioMaster GX12 marks a new era in innovation and technology for high-performance radio controllers. Designed for drone racing, FPV flying, and video work, the GX12 prioritizes signal strength and reliability, ensuring you stay connected when it matters most. Whether for work or play, the GX12 embodies excellence in drone control. Welcome to the future of radio controllers—elevate your RC experience with the latest advancements in open-source technology and performance!

 

Check out all our Radios and the rest of our RadioMaster Products.

 

 

Features:

  • Dual-Band Dual 1W Gemini Xrossband ExpressLRS Transmitters: Experience unmatched range and reliability with ExpressLRS Gemini Xrossband (Gem-X) dual-band transmission capabilities.
  • Integrated Folding Dual-Band Antennas: Sleek design with foldable antennas for easy transport and storage; Compatible with both 2.4GHz and Sub-G 900MHz frequencies.
  • GX01 Gimbals -Fully CNC Aluminum 3D Digital Hall Sensor Gimbals: Precision-engineered aluminum gimbals with 3D Hall sensors for superior control and durability.
  • 1000Hz Digital Gimbals with EdgeTX Sync: Achieve exceptional precision and responsiveness with high-frequency digital gimbals featuring EdgeTX sync.
  • Folding Gimbal Sticks: Foldable gimbal sticks for convenient storage and transport.
  • Removable Switch Panels: Customize your setup with our modular switch panels, allowing for easy switch changes to suit your preferences.
  • DIY SMA Ports: Enjoy flexibility in antenna installation with SMA port integration.
  • OLED Display: Crisp and clear OLED with high contrast display.
  • Internal Storage: 512MB of integrated high-speed flash storage—no need for TF cards!
  • USB-C Connectivity: The GX12 features a single USB-C port that manages smart balance charging, SIM connectivity,  firmware updates and direct access to the integrated high speed flash memory.
  • Integration of programmable 6-Position Switch : Individually programmable 6-position switches offer versatile control options tailored to your unique setup.
  • Programmable RGB Indicators on 6-Position and SA/SD Switches: Customizable RGB lights provide visual feedback on switch status.
  • Powerful Efficient Cooling System: With dual 1-watt transmitters, the GX12 boasts serious power, featuring an advanced cooling system to keep your radio cool even on the hottest days.
  • PCB Nano coating: Engineered for the Extremes! The GX12 is built to thrive in demanding environments. With thicker plastics and a hydrophobic PCB coating, this controller is designed to withstand hot, cold, dry, and humid conditions. Count on the GX12 to deliver, no matter where your adventures take you!

Specifications:

  • Item: GX12 Radio
  • Color: Black
  • Size: 183*148*78mm
  • Weight: 573g
  • Frequency: 2.400GHz and Sub-G 900MHz
  • Internal RF: ELRS 2.4GHz / Sub-G 900MHz
  • Supported Protocols: Express-LRS
  • Cooling Fan: Yes
  • Antenna: Dual folding 2.4GHz/ Sub-G 900MHz Omni directional
  • RF:  (Dual 1,000mW | Dual band XROSSBAND ELRS)
  • Voltage Range: 6.6 - 8.4V DC
  • Current: 390mA - 1000mA (Depending on Rf output)
  • Radio Firmware: EdgeTX (Transmitter) / ELRS (RF module)
  • Channels: Max 16 channels (Receiver dependent)
  • Battery: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included)
  • Charging: 2S Smart Balance Charging
  • Connectivity: USB-C
  • Display: 128*64 Monochrome OLED display
  • Gimbal: GX01 1000Hz, 3D Digital CNC Hall Effect Gimbal with folding sticks
  • Gimbal Sticks: 3mm
  • External Module: Nano / Crossfire compatible
  • Upgrade Method: USB / EdgeTX Companion PC software
  • Memory: 512Mb Integrated Flash 

Introducing the GX12 Radio Controller, a groundbreaking fusion of cutting-edge technology from ExpressLRS and EdgeTX. The GX12 is the first radio to feature ExpressLRS Gemini-XROSSBAND (GEM-X), allowing for simultaneous transmission on both 2.4GHz and 915MHz, ensuring unmatched interference rejection.

Designed with integrated folding dual-band antennas, the GX12 supports all current 2.4GHz and 900MHz ExpressLRS receivers, as well as the new generation of Gemini Xrossband (Gem-X) receivers, providing extended range and exceptional performance. Elevate your flying experience with the ultimate in radio control innovation!

Folding gimbal sticks ensure compact storage and easy transport. With all-new 1000Hz digital aluminum gimbals, the GX12 delivers unparalleled resolution, precision, and responsiveness in an EdgeTX radio.

The GX12 redefines your RC experience with remarkable flexibility and cutting-edge features. Removable switch panels allow for personalized setups using the included modular panel system, while DIY SMA ports let you choose the perfect antennas for your needs. Featuring 512MB of internal flash storage, the need for TF cards is eliminated, and a single USB-C port simplifies both charging and data/simulator connectivity. The GX12 also includes individually programmable 6-position buttons and SA/SD switches, along with customizable RGB indicators to enhance both functionality and style.

The controller is designed with both a standard, accommodating your power requirements to maximize flight time. Whether you’re a hobbyist or a professional, the GX12 Radio Controller is your gateway to the future of RC. Embrace true innovation and elevate your flying experience with the GX12!

Dimensions

Package Includes:

  • 1 * GX12 Radio Controller
  • 1 * Signature Carry Case
  • 1 * 18650 Battery Tray
  • 2 * Replacement Switch Panels
  • 1 * Type-C Cable
  • 1 * Screen Protector
  • 1 * 1.5mm Hex Wrench
  • 4 * Low Tension Gimbals Springs
  • 1 * 2 Position Switch
  • 1 * Momentary Switch
  • 1 * RadioMaster Sticker Set
  • 1 * GX12 Manual
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 20666137701

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4.3 ★★★★★
Based on 18 reviews
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Dave M
Lowell, US
★★★★★ 3
Not a reliable charger
Color: BLACK
The car holder portion of this item is incredible. It automatically closes around your phone when it detects it and keeps it very snug. You press a button on the side to release and that's it. Now the charging part of this is pretty bad. i understand that wireless chargers are not as fast as wired but when i use this it would take over 3 times as long as a wired charger. If a plug says 45 min to charge this would take at least 2 and a half hours. It is great for roadtrips or if you drive constantly but for any short trips the charging is negligable. I also have used it without a case to see if that was the issue and it was not. At the very least it keeps your phone at the same charge on short trips so I guess that's good.
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Reviewed in the United States on April 18, 2026
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Kaiden S.
Lowell, US
★★★★★ 5
Great product, great for the delivery drivers out there
Color: BLUE
If you are debating about getting this dash mount, get it. I haven't fully tested the wireless charging but I have a pretty uneven surface and it sticks extremely well, the holders that hold the phone are electronic and they sense whether or not the phone is in there once open so it won't just close randomly. If you turn the car off, you can release it, go away for a few minutes and then come back, set the phone on there, and turn the car back on, and after a few seconds it will clamp. If you press the button while the car is off it will clamp as well. I would recommend testing whether or not it wireless charges on whatever one you get, just in case of a defect, and you don't even need to take the film off to test it. This one is one hundred percent worth the money..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
A
Verified Purchase
Amy
Lexington, US
★★★★★ 5
Versatile for any phone size.
Color: BLACK
My husband loves us so much he bought 2. I like how itself adjust to the phone once it's seated.
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Reviewed in the United States on May 15, 2026
N
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Nicole Morphew
Lowell, US
★★★★★ 5
Rock-Solid MagSafe Mount—Perfect Fit for Tesla Interiors!
This Tesla MagSafe phone mount is hands-down the best car mount I’ve used. The magnetic strength is incredible—my phone snaps on instantly and stays firmly in place, even over bumps and sharp turns. It truly lives up to the “strongest magnet power” claim. The design looks sleek and factory-made, blending perfectly with my Tesla Model 3/Y/S/X interior without blocking the screen or vents. Installation was quick and tool-free, and the mount feels extremely secure once attached. I love that it works flawlessly with MagSafe and also holds non-MagSafe phones just as well. The viewing angle is ideal for navigation and hands-free use, making driving safer and more convenient. If you’re looking for a premium, reliable, and stylish phone mount specifically designed for Tesla, this one is a must-have accessory. Highly recommended!
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Reviewed in the United States on January 19, 2026
K
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Kevick
New York, US
★★★★★ 5
Super Strong Hold with Magsafe & Sleek Design
I recently picked up this Tesla phone mount, and so far, I’m really impressed. The build quality feels solid, with durable plastic and a secure grip that holds my phone in place even on bumpy roads. Installation was straightforward—no tools needed—and it fits neatly behind the screen without blocking any view or controls. The magnetic ring provides extra stability, and the adjustable arms are wide enough to fit most phones, even with a case. It rotates smoothly for both horizontal and vertical viewing, which is perfect for navigation or hands-free calls. Overall, it’s a sleek, practical addition to the Tesla interior. If you’re looking for a minimalist, stable phone holder that blends well with the car’s design, this one’s definitely worth it.
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Reviewed in the United States on July 25, 2025

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