Is the TX15 Max worth it over a cheaper RadioMaster?

If you fly long range or want 900MHz and 2.4GHz ELRS in one radio, the dual-band LR1121 and H7 chip justify the step up. For short-range park flying, a lighter single-band radio does the same job for less.

Does it work with both 2.4GHz and 900MHz receivers?

Yes. The internal LR1121 module transmits on 2.4GHz or Sub-G 900MHz ELRS, so it binds to either receiver type. You pick the band per model in EdgeTX.

What battery does the TX15 Max take?

It runs on 6.6-8.4V DC, meaning a 2S Li-ion or 2S LiPo pack. The battery is not included, so budget for one plus the correct connector.

How many channels can it output?

Up to 16 channels, limited by the receiver you pair it with. Most ELRS receivers support 16 channels over CRSF.

Is the TX15 Max too big for travel?

At 178x168x81mm and 672g bare, it is a full-size radio that needs a proper case. If portability matters most, a compact RadioMaster model is the better fit.

When is the TX15 Max cheapest?

Radio gear typically dips during holiday sales and when a new RadioMaster model launches. Watch the price history here rather than buying at first listing.

What do buyers say about the TX15 Max Radio Controller (ELRS / M2)?

Rated 4.9 out of 5 from 58 ratings.

TX15 Max Radio Controller (ELRS / M2)

4.9

Last price we saw

$391.95last seen Oct 29

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Our take on the TX15 Max Radio Controller (ELRS / M2)

The TX15 Max is RadioMaster's high-end EdgeTX radio, built on an STM32H7 chip with a dual-band LR1121 transceiver for 2.4GHz and Sub-G 900MHz ExpressLRS. It pairs AG02 CNC Hall gimbals with a 3.5-inch 600-nit IPS touchscreen, a built-in gyro for TiltX/TiltY switch control, and 4GB of flash plus MicroSD expansion. It is a large, heavy radio at 672g without a battery, so it suits pilots who want a full-size, long-range-capable transmitter rather than a compact travel unit.

What reviewers say

With a 4.9 average from 58 ratings, owners treat the TX15 Max as a premium step up in the RadioMaster line. Praise centers on the H7 responsiveness, the gimbals and the bright touchscreen; the recurring complaint is weight and bulk.

Pros

Fast, lag-free EdgeTX response from the H7 chip
Smooth, accurate AG02 Hall gimbals
Screen is bright and easy to read outdoors
Dual-band ELRS covers both short and long range

Cons

Heavy at 672g before a battery is fitted
Big footprint in a backpack or case
Battery not included

About the TX15 Max Radio Controller (ELRS / M2)

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 MAX. 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 flash storage and MicroSD card expansion, you’ll have virtually unlimited space for models, scripts, sounds, and themes.

The TX15 MAX features an LR1121 Semtech transceiver, supporting both 2.4GHz and 900MHz ExpressLRS (ELRS) for exceptional low-latency performance. Whether you're using it daily or in challenging RF environments, the TX15 is engineered to deliver reliable results. A smart balance battery circuit optimizes runtime, while the compact, foldable antenna design enhances portability and maintains strong signal quality. The built-in gyro with TiltX/TiltY functions unlocks advanced control options, allowing you to trigger switches, adjust accessories, or activate telemetry features with a simple tilt of your radio.

This versatile module combines durability, ease of use, and innovative features, making it an outstanding choice for demanding setups.

Enjoy sharp visuals on the 3.5-inch IPS touchscreen with 262k color resolution and 600 nits brightness, even in sunlight. The TX15 MAX boasts AG02 CNC aluminum gimbals in anodized red, black or gold, upgraded aluminum buttons, a scroll wheel, and a carbon-fiber-look case for a premium feel. Integrated RGB LED lights around the gimbals allow customizable LUA-controlled lighting. It includes advanced cooling, a USB-C charging port, SIM connectivity, firmware updates, and fast memory access for top-tier 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. Prefer the standard model? See the TX15 Standard .

Step into the future. TX15: The Future Is Here, One Step Ahead.

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: the premium AG02 gimbals for enhanced smoothness.

Built-in ExpressLRS: 2.4GHz / 900MHz ExpressLRS integration for reliable and stable signal.

Smart Balance Battery Circuit : Maximizes battery efficiency and optimizes runtime.

Powerful, Cooling System: Low noise, high output fans and an aluminium heat sink keep your radio cool even on the hottest days.

AG02 Gimbal: More than 20% reduced weight, with adjustable travel on both vertical and horizontal axis.

Customizable RGB Gimbal Light- Ring: Integrated RGB LED lights around the gimbals allow customizable LUA-controlled lighting.

Foldable Antenna: Compact and easy to store without compromising signal strength.

Built-in Microphone: For future feature expansion.

Built-in Motion Sensor: Trigger switches, pan/tilt cameras, or telemetry callouts simply by tilting your radio.

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

Interchangeable Shoulder Switches: Customize your controls to match your style.

Specifications

• Item: TX15 Max Radio Controller

• Size: 178*168*81mm

• Weight: 672g (without battery)

• Color: Red/ Black/ Gold

TX15 Max Radio Controller (ELRS / M2)

Last price we saw

Ask our shopping agent

Our take on the TX15 Max Radio Controller (ELRS / M2)

TX15 Max Radio Controller (ELRS / M2)

Last price we saw

Ask our shopping agent

Our take on the TX15 Max Radio Controller (ELRS / M2)