Receiver RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS
MCU: ESP32D4
RF Chip: LR1121 x 2
RF connector: IPEX-1 X 2
Antenna: Dual-Band T Antenna x 2 (Included)
Frequency Range: 2.4GHz / Sub-G 868/915MHz
Telemetry Power: 100mw
Maximum receive refresh rate: DK500Hz / K1000Hz
Minimum receiver refresh rate: 50Hz
Working voltage: DC 4.5 - 8.4V
Weight: 1.7g (without antenna)
Dimension: 22x18x4mm
Firmware Version: ExpressLRS v3.5.1 pre-installed
FW Target: RadioMaster XR4 2.4/868/915 Gemini RX
Bus interface 1: CRSF
Bus interface 2: UART
| Brand | RadioMaster |
| Protocol | ELRS 2.4GHz |