Q: Does the RadioMaster GX15 radio controller come with built-in ExpressLRS (ELRS)?

A: Yes. The RadioMaster GX15 features an integrated internal ExpressLRS (2.4GHz) RF module, allowing you to bind directly to any ExpressLRS receiver without buying an external module.

Q: What type of batteries does the RadioMaster GX15 use, and how do I charge it?

A: The GX15 is powered by a 2S Li-ion battery setup (compatible with 18650 or 21700 cell battery trays). It features an integrated USB-C fast-charging circuit, allowing you to charge the batteries safely inside the radio using standard USB power supplies.

Q: Can I attach external RF modules (like TBS Crossfire or Multi-Protocol modules) to the GX15?

A: Yes. The GX15 includes a dedicated external module bay (Nano/JR bay form factor), enabling you to clip on external transmitter modules for Crossfire, Tracer, or Multi-protocol systems when flying legacy aircraft.

Q: How do I update the EdgeTX firmware and ExpressLRS Lua scripts on the radio?

A: You can easily update EdgeTX using the EdgeTX Companion software or web flasher over USB-C. ExpressLRS internal firmware can be updated via WiFi or the ExpressLRS Configurator tool using the onboard USB connection.

Q: Is the GX15 radio controller suitable for both pinching and thumping pilot grip styles?

A: Absolutely. The compact ergonomic chassis is contoured with textured rubber grips, making it comfortable for thumpers holding the radio in hand and pinchers using a neck strap or tray.

Q: Can I use the RadioMaster GX15 as a controller for FPV flight simulators on a PC?

A: Yes. Simply connect the GX15 to your computer via USB-C cable and select "USB Joystick (HID)" mode on the screen. It is recognized natively as a plug-and-play controller by popular simulators like Liftoff, Uncrashed, and VelociDrone.

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New

RadioMaster GX15 Max Radio Controller - ELRS 2.4GHz M2

About RadioMaster GX15 MAX Radio Controller:

Next-Gen Gemini ExpressLRS Performance for Precision Aircraft PilotsEngineered for RC airplane aviators, glider soaring enthusiasts, helicopter pilots, and traditional scale aircraft operators, the RadioMaster GX15 MAX Radio Controller delivers modern signal reliability wrapped in a precision-optimized form factor. Powered by a high-performance STM32 H7 processor, the GX15 MAX features a top-mounted 3.5-inch 600-nit IPS touchscreen that displays real-time flight telemetry above your hands for unobstructed viewing. Driven by a dual 250mW ExpressLRS (Gemini) RF system with polarization diversity antennas and V6 Hall-effect gimbals, it offers rock-solid control link stability, dynamic tilt sensing, and ultra-fast update rates for demanding outdoor flight missions.

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RadioMaster 18650 3200mAh 1S 3.7V Li-ion Battery (2pcs) for TX16S / Boxer / TX12/ Pocket / MT12 Radios
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RadioMaster AG02 CNC Hall Gimbals for TX15 & TX16S & Boxer Radio
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Top highlights

Built-In ExpressLRS Protocol: Integrated high-refresh ELRS module delivers ultra-low latency and long-range link.
Precision Hall Sensor Gimbals: Smooth dual-bearing Hall gimbals provide precise control response for FPV pilots.
Color Touchscreen Display: High-brightness color touch interface allows intuitive EdgeTX menu navigation.
Ergonomic Compact Form Factor: Ergonomic rubberized hand grips ensure comfortable control during long flights.
Universal EdgeTX Compatibility: Powered by open-source EdgeTX firmware for unlimited model customization.

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Features

● High-Performance Processor: STM32 H7 processor delivers fast and responsive system performance.

● Touchscreen Display: 3.5-inch IPS touchscreen (480 × 320) with 262K colors and up to 600 nits brightness for clear outdoor visibility.

● Precision Gimbals: Equipped with V6 Hall-effect sensor gimbals for accurate and consistent control.

● Dual 2.4GHz ExpressLRS (Gemini): Powered by dual 250mW SX1281 transceivers, the GX15 delivers reliable Gemini performance while supporting ultra-fast ExpressLRS update rates, including F1000 operation with compatible receiver systems.

● Intelligent Battery Management: Optimizes power usage and extends operating time.

● Efficient Cooling System: Low-noise fan with aluminum heat sinks ensures stable operation in demanding conditions.

● Dual Integrated 2.4GHz Antennas: Internal horizontal and vertical antenna arrangement provides polarization diversity while maintaining a clean, antenna-free exterior.

● Built-in Microphone: Reserved for future feature expansion.

● Built-in Gyroscope: Enables tilt-based control inputs for switches, gimbals, and telemetry functions.

● Storage: Built-in flash memory with external SD card support.

● Interchangeable Shoulder Switches: Configurable control layout with replaceable switch modules.

● Multiple Color Options: Available in five color variants: White / Yellow / Red / Green / Blue.

The GX15 MAX features a top-mounted 3.5-inch IPS touchscreen with 262K colors and up to 600 nits brightness. Positioned above the controls, the display keeps telemetry, timers, and flight information easily visible throughout flight, allowing pilots to monitor critical data without their hands obstructing the screen.

Powered by a high-performance STM32 H7 processor, the GX15 MAX delivers a significant increase in computing performance over previous generations. The result is a smoother EdgeTX experience, faster script execution, and near-instant model switching. With onboard flash memory and support for external TF cards, the GX15 MAX offers a dual-storage system for secure and flexible data management.

radiomaster gx15 max radio controller stm32 h7 processor

At its core, the GX15 MAX features dual Semtech SX1281 transceivers supporting Gemini 2.4GHz ExpressLRS (ELRS). Designed for modern aircraft and helicopter systems, the GX15 MAX delivers low-latency control and supports ultra-fast update rates, including F1000 operation with compatible receivers such as the Nexus-XR. Working together with dual integrated antennas positioned behind the display in both horizontal and vertical orientations, the system provides Gemini redundancy, polarization diversity, and reliable signal performance while maintaining a clean form factor free from bulky external antennas.

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radiomaster gx15 max radio controller integrated dual antennas

The GX15 MAX is equipped with precision CNC-machined AG02 Hall sensor gimbals, delivering exceptional control feel, smooth operation, and long-term durability. Aluminum buttons, a CNC aluminum scroll wheel, and upgraded controls provide a solid and consistent interface throughout the radio. The carbon-look case completes the premium design while maintaining excellent balance and comfort during extended flying sessions.

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radiomaster gx15 max radio controller detail

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A built-in cooling system with a low-noise fan and aluminum heat sinks ensures stable operation during extended use and demanding environmental conditions. The USB-C interface supports charging, simulator connectivity, firmware updates, and high-speed data transfer.

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radiomaster gx15 max radio controller single usb type c port

A smart battery management circuit improves efficiency and extends operating time, while the built-in gyroscope enables additional control inputs. Tilt-based functions can be used to trigger logical switches, control gimbal movement, or activate telemetry voice prompts—adding flexibility without additional hardware.

radiomaster gx15 max radio controller built in gyro

Interchangeable shoulder switch modules allow pilots to configure controls to their preference, including the option to replace switches with momentary buttons. The GX15 MAX combines the advanced performance of the GX15 platform with premium materials, AG02 CNC gimbals, and refined controls for pilots seeking the ultimate GX series experience.

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Dimensions

Specification

● Item: GX15 MAX Radio

● Color: Black / Transparent Charcoal / Red / Gold / Blue

● Voltage Range: 6.6 - 8.4V DC

● Current: 850mA (at max output power)

● Frequency: 2.400GHz

● Internal RF: ExpressLRS 2.4GHz

● Channels: Max 16 channels (Receiver dependent)

● Radio Firmware: EdgeTX (Transmitter) (requires version ● 2.12.0 or higher)

● Built-in Flash Storage: 512MB

● Cooling Fan: Yes

● Built-in Microphone: Yes (Future expansion)

● Built-in Motion Sensor: Yes

● MicroSD card (Not included): 32GB/FAT32 (Inserting a MicroSD card will disable the onboard flash)

● Display: 3.5-inch IPS touchscreen (480 x 320 resolution)

● Battery: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included)

● Connectivity: USB-C

● Gimbals: AG02 CNC Hall sensor gimbals

● Gimbal Sticks: M4

● Upgrade Method: USB-C (UF2)

● Module Bay: JR-compatible module bay for additional modules

● Dimensions: 178*168*81mm

● Weight: 725g (without battery)

Associated Products

● GX15 MAX Radio

● AG02 Hall sensor gimbals

● LED Gimbal Rings

● 18650 3200mAh 3.7V Battery

● 21700 5000mAh Battery

● Switch Nut Tool

● Shorty360 Stick ends

● Extended Adjustable Lanyard Hook

Package Includes

● 1 * GX15 Max Radio Controller

● 1 * GX15 Max Signature Carry Case

● 1 * 18650 Battery Tray

● 2 * Replacement Shoulder Panels

● 1 * Type-C Cable

● 1 * Screen Protector

● 1 * 1.5mm Hex Wrench

● 4 * Low Tension Gimbals Springs

● 2 * Gimbal Stick Set Screws

● 4 * 6mm Switch Delete Gromets

● 1 * Lanyard

● 1 * RadioMaster Sticker Set

● 1 * GX15 Manual

● 1 * Inventory Card

radiomaster gx15 max radio controller package include

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FAQ Feel free to ask us any questions

Q: Does the RadioMaster GX15 radio controller come with built-in ExpressLRS (ELRS)?: A: Yes. The RadioMaster GX15 features an integrated internal ExpressLRS (2.4GHz) RF module, allowing you to bind directly to any ExpressLRS receiver without buying an external module.
Q: What type of batteries does the RadioMaster GX15 use, and how do I charge it?: A: The GX15 is powered by a 2S Li-ion battery setup (compatible with 18650 or 21700 cell battery trays). It features an integrated USB-C fast-charging circuit, allowing you to charge the batteries safely inside the radio using standard USB power supplies.
Q: Can I attach external RF modules (like TBS Crossfire or Multi-Protocol modules) to the GX15?: A: Yes. The GX15 includes a dedicated external module bay (Nano/JR bay form factor), enabling you to clip on external transmitter modules for Crossfire, Tracer, or Multi-protocol systems when flying legacy aircraft.
Q: How do I update the EdgeTX firmware and ExpressLRS Lua scripts on the radio?: A: You can easily update EdgeTX using the EdgeTX Companion software or web flasher over USB-C. ExpressLRS internal firmware can be updated via WiFi or the ExpressLRS Configurator tool using the onboard USB connection.
Q: Is the GX15 radio controller suitable for both pinching and thumping pilot grip styles?: A: Absolutely. The compact ergonomic chassis is contoured with textured rubber grips, making it comfortable for thumpers holding the radio in hand and pinchers using a neck strap or tray.