Radiomaster Boxer 2.4G 16ch Hall Gimbals Transmitter 4in1 ELRS CC2500 Support EdgeTX Review (2026)

Radio hardware and protocols

The Boxer packs an internal 4-in-1 multi-protocol module alongside ExpressLRS support and CC2500 compatibility, which means a single transmitter can bind to modern ELRS receivers as well as older Frsky-based radio links without buying a second radio or swapping internal modules. That flexibility is useful for pilots who have accumulated a mix of older and newer quads over the years, since it removes the need to keep two separate transmitters around just to fly different receivers. RadioMaster rates the CC2500 side at up to 20dBm of transmitting power on the 2.4GHz band, in line with what most FPV pilots need for typical line of sight flying.

Hall gimbals and control feel

This Boxer ships with RadioMaster's high precision 4.0 Hall effect gimbals as the standard configuration, a magnetic sensing design that tends to hold its center point and resist wear better over years of use than older potentiometer-based gimbals found on entry-level radios. RadioMaster also sells an upgraded AG01 gimbal as an optional swap for pilots who want an even finer control feel, though the 4.0 Hall units included here are already a meaningful step up from budget radio gimbals. Precise, consistent centering matters most for freestyle and racing pilots who rely on fine stick inputs during fast maneuvers.

EdgeTX firmware and customization

The Boxer runs EdgeTX, an actively maintained open source firmware that gives pilots deep control over mixing, model memory, telemetry screens, and audio alerts far beyond what closed-source consumer radios typically offer. Firmware updates and configuration backups can be done over USB or by copying files to the radio's SD card, and EdgeTX Companion desktop software lets pilots edit models and simulate flights on a computer before pushing changes to the transmitter. That level of customization is a genuine advantage for experienced pilots, but the sheer number of menus and settings can be overwhelming for someone setting up their first radio.

Physical build and power

RadioMaster lists the Boxer at roughly 235 by 178 by 77mm and about 532.5 grams, a game controller style shape that sits comfortably in two hands rather than the stick-style layout of a traditional transmitter. It runs on a 6.6 to 8.4 volt supply, which covers either a 2-cell LiPo pack or two 3.7V 18650 lithium-ion cells, though batteries are not included and need to be purchased separately. A 128 by 64 pixel monochrome LCD screen handles the on-radio menus, and the radio also accepts external JR, Frsky, or Crossfire-format modules if a pilot wants to add another protocol down the line. The larger body gives the switches and trim buttons more room to spread out, which makes them easier to find by feel without looking down mid-flight.

Who should buy this Boxer variant

This version of the Boxer suits pilots who specifically want both ExpressLRS and legacy CC2500-protocol flexibility from one EdgeTX transmitter, and who are comfortable digging into open source firmware menus to set things up the way they want. Because this particular listing does not state which stick mode it ships in, buyers should confirm mode 1 versus mode 2 stick layout with the seller before ordering, since remapping gimbal wiring after the fact is an unnecessary hassle. First-time radio buyers who want something simpler out of the box may prefer a Boxer variant with a clearly stated mode and a single confirmed protocol instead.

Frequently asked questions