RadioMaster continues to redefine the open-source remote control landscape. After years of collaboration with our open-source partners and users, we are proud to introduce the TX15. Driven by the high-performance STM32 H7 chip, it’s the powerhouse behind our fastest radio ever — enabling ultra-smooth EdgeTX control, instant model switching, and lightning-quick script execution. With 4GB of flash storage and MicroSD card expansion, you’ll have virtually unlimited space for models, scripts, sounds, and themes.

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The TX15 features a LR1121 Semtech transceiver, supporting both 2.4GHz or 900MHz ExpressLRS (ELRS) for long-range, low-latency performance. Whether you're flying daily or operating in challenging RF environments, the TX15 is built to perform. A smart balance battery circuit maximizes flight time, while the compact, foldable antenna design improves portability and ensures strong signal quality. The built-in gyro with TiltX/TiltY functions unlocks advanced control options, allowing you to trigger switches, pan/tilt cameras, or activate telemetry callouts with a simple tilt of your radio.

Experience clear visuals on the 3.5-inch IPS touchscreen with 262k color resolution and 600 nits brightness, visible in sunlight. The TX15 Standard features V5.0 hall sensor gimbals in six vibrant colors. It's advanced cooling, a USB-C port for charging, SIM connectivity, firmware updates, and high-speed memory access ensure reliable performance. We’ve included additional switches so you can swap out the shoulder buttons with either a momentary or two-position latching switch—perfect if you prefer a traditional switch over a button.

N.B: Battery needed: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries are not included)

Features:

Blazing-Fast Performance: The STM32 H7 chip powers our fastest radio ever.
Touchscreen Display: 3.5-inch, 480 x 320 IPS touchscreen with vivid colors and sharp detail.
Precision Gimbals: V5.0 Hall sensor gimbals
Built-in ExpressLRS: 2.4GHz / Sub-G 900MHz ExpressLRS integration for reliable and long-range control.
Smart Balance Battery Circuit: Maximizes battery efficiency and longevity for more flight time.
Powerful, Efficient Cooling System: Low noise, high output fans and an aluminium heat sink keep your radio cool even on the hottest days.
Foldable Antenna: Compact and easy to store without compromising signal strength.
Built-in Microphone: For future feature expansion.
Built-in Gyro: Trigger switches, pan/tilt cameras, or telemetry callouts simply by tilting your radio.
Memory: Integrated 4GB of onboard flash memory and external MicroSD card support.
Interchangeable Shoulder Switches: Customize your controls to match your flying style.
Optional colors: Iron Grey / Frost White / Iceberg Blue / Mint Mist / Lemon Twist Yellow / Hot Pink

Specifications

Item: TX15 Radio Controller
Size: 178*168*81mm
Weight: 605g (without battery)
Frequency: 2.400GHz OR Sub-G 900MHz
Internal RF: ELRS 2.4GHz / Sub-G 900MHz
Supported Protocols: Express-LRS
Cooling Fan: Yes
Transmitter Module: Built-in ELRS
Built-in Flash Size: 4GB
Built-in Microphone: Yes (Future expansion)
Built-in Gyro: Yes (ICM-42607-C)
MicroSD card (Not included): 32GB/FAT32 (Inserting a MicroSD card will disable the onboard flash)
Antenna Gain: 2dB (transmit power adjustable)
Current: 875mA at max power output
Voltage Range: 6.6 - 8.4V DC
Radio Firmware: EdgeTX (Transmitter) (requires version 3.0.0 or later)
Module Firmware: ExpressLRS
Channels: Max 16 channels (Receiver dependent)
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: V5.0 Hall sensor gimbals (standard)
Gimbal Sticks: M4
Upgrade Method: USB-C (UF2)
Module Bay: JR-compatible module bay for additional modules

User Manual

TX15 User Manual

Package Includes:

1 * TX15 Radio Controller
1 * Signature Carry Case
1 * Short 2-position Latching Shoulder Toggle Switch Assembly
1 * Short 2-position Momentary Shoulder Toggle Switch Assembly
1 * 18650 Battery Tray
1 * USB-C Cable
1 * Screen Protector
1 * 1.5mm Hex Wrench
4 * High Tension Gimbals Springs
2 * Gimbal Stick Set Screw
1 * Stickers Set
1 * User Manual
1 * Inventory Card

RadioMaster TX15 M2 ELRS 2.4GHz/900MHz 3.5-inch Touchscreen Display V5.0 Hall Sensor Gimbals Radio Controller