Radio systems and receivers: choosing a reliable control link
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
Boxer Radio Transparent Version (ELRS / M2) is a RadioMaster product intended for pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
A practical binding guide for matching protocol, bind mode, receiver power, model memory, control checks and common binding mistakes.
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.0055-M2 |
| All Variant SKUs | HP0157.0055-M2, HP0157.0055-M2-LBT |
| Available Variants | ELRS / FCC; ELRS / LBT |
| Product Type | Boxer Radio |
| RadioMaster Collections | Boxer Radio |
| Product Family | Boxer transmitter platform |
| Application | pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models |
| Item | BOXER Radio Transparent Version |
| Weight | 532.5g |
| Compatibility | Compatible with RadioMaster Boxer platform where applicable |
| Protocol / RF | ExpressLRS / ELRS, 2.4GHz, EdgeTX |
| Frequency | 2.400GHz-2.480GHz |
| Internal RF | ELRS 2.4GHz |
| Channels | Max 16 channels (Receiver dependent) |
| Display | 128*64 Monochrome LCD display |
| Radio Firmware | EdgeTX (Transmitter) / ELRS (RF module) |
| Battery | 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells (batteries not included) |
| Size | 235*178*77mm |
| Voltage Range | 6.6-8.4V DC |
| Gimbal | High precision 4.0 Hall gimbals as standard (AG01 Optional) |
| Upgrade Method | USB / SD card & EdgeTX Companion PC software |
| Supported protocols | Module dependent |
| Cooling fan | Built in (ELRS version) |
| External module | JR / FrSKY / Crossfire compatible |
| BONUS | White Gimbal LED set included but not installed; Radiomaster neck strap |
Tags: RadioMaster, HP0157.0055-M2, Boxer Radios, Boxer Radio, RC radio
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