RadioMaster Boxer ELRS M2 (FCC) — Compact and Powerful Radio Transmitter

Name: RadioMaster Boxer ELRS M2 (FCC) Radio Transmitter. Manufacturer: Radiomaster. Category: Drones & Quadcopters > Drone Components > Transmitters. Product Type: Drones & Quadcopters > Transmitters.

The BOXER is designed as the ideal choice for pilots on the go: the optimal combination of compact size and comfortable ergonomics allows for control during long flights without loss of functionality. The device features full-size V4.0 hall-effect gimbals, RadioMaster's intuitive button layout, an adjustable and removable T-shaped antenna, an industry-first fabric handle for comfortable carrying, and interchangeable ergonomic grips.

Key Features

• Available with built-in ExpressLRS (ELRS) or 4-in-1 / CC2500 MPM RF modules.
• Powerful STM32F407VGT6 processor with 1MB Flash and 192KB RAM ensures fast data processing and stable firmware operation.
• Pre-installed EdgeTX (transmitter) firmware, Multi-Module for the RF module, and ELRS provide flexible settings and compatibility with most modern receivers.
• Internal ELRS module with upgrade capability and refresh rate up to 1000 times per second for minimal control latency.
• Adjustable ELRS output power: up to 30dBm (international FCC) or up to 20dBm for EU LBT; ELRS LBT limited to 100mW (CE EU domain LBT FW).
• 4-in-1 or CC2500 versions provide a maximum of 20dBm RF output power.
• QC3.0 fast charging support with a maximum current of 2.0A for convenient powering of external devices.
• Built-in fan for module cooling in the ELRS version, increasing stability under high loads.
• New low-profile SE switch and momentary SF switch, versatile 6-position switch for quick access to flight modes.
• Spacious battery compartment: supports 2S 6200mAh battery (batteries not included) or two 18650 cells.
• Standard JR module bay, compatibility with external JR/FrSKY/Crossfire modules makes BOXER a universal controller for various systems.
• Full-size V4.0 hall-effect gimbals as standard with upgrade option to AG01 CNC for enhanced control precision.
• Redesigned SD card slot with pre-loaded SD card; external module power slots in the battery cover for convenient connection.
• Included: RadioMaster branded case and gimbal protector ensure device safety during transport.

Specification

Versions and Compatibility

The BOXER is available in FCC and EU LBT variants. Available internal module options: the popular 4-in-1 Multi-module (CC2500, NRF24L01, A7105, CYRF6936), a CC2500-only option, and a version with an internal 2.4GHz ExpressLRS with up to 1W power and a cooling fan. ELRS is designed for minimal latency and high refresh rates.

• Standard FCC Version: CC2500 (FCC) supports all CC2500 protocols; 4in1 (FCC) supports all MPM protocols; ELRS (FCC) pre-installed with ExpressLRS ISM FW.
• EU LBT Version: CC2500 LBT (Europe) is limited to LBT-compliant protocols — FrSKY X/X2 LBT and HoTT LBT; 4in1 LBT is limited to FrSKY X/X2 LBT, HoTT LBT, and DSMX; ELRS LBT is pre-installed with ExpressLRS CE EU domain LBT FW (limited to 100mW output power).

Package Contents

• 1 × BOXER Radio Transmitter
• 1 × RadioMaster Branded Case
• 1 × T-shaped Antenna
• 1 × USB-C Cable
• 1 × Gimbal Protector
• 1 × 1.5mm Hex Wrench
• 2 × M4*4 Screws
• 4 × Low-tension Springs
• 1 × 18650 Battery Tray
• 1 × Stickers
• 1 × Manual

The BOXER offers a combination of mobility, precise control, and professional features: from full-size hall-effect gimbals and a powerful STM32F407VGT6 processor to a choice of RF modules (ELRS/4-in-1/CC2500) and EdgeTX support. It is an ideal option for those seeking a compact yet functional transmitter for many drone models. Please note: batteries are not included.

Other products in this category here Transmitters