Radiomaster XR4 Gemini Xross ELRS 868MHz/2.4GHz

Specifications:

• Name item: used XR4 Gemini Xross ELRS 868MHz/2.4GHz Gemini Xross ELRS 868MHz/2.4GHz
• Type: ISM
• MCU: ESP32D4
• RF Chip: LR1121 x 2
• Maximum receive refresh rate: DK500Hz /K1000Hz
• Telemetry Power: 100mw
• Working voltage: DC 5.0 - 12.6v
• Weight: 1.7g (without antenna)
• Dimension: 22mm * 18mm * 4mm
• Bus interface 1: CRSF
• Bus interface 2: UART
• Firmware Version: ExpressLRS v3.5.1 pre-installed

The package contains: 

1x Radiomaster RP4TD-M ExpressLRS 2.4GHz