The XR2 Receiver is a nano-sized powerhouse engineered for 2.4GHz ExpressLRS, featuring an integrated tower antenna that delivers exceptional reception within its ultra-compact design. With a footprint of just 16x12mm and a lightweight of only 0.8g, it fits seamlessly into even the most space-constrained builds. Driven by the advanced Semtech LR1121 transceiver (third generation), the XR2 offers compatibility with all ELRS 2.4GHz transmitters and unlocks the benefits of DK500Hz mode for LR1121-based systems, ensuring unparalleled reliability and responsiveness. The built-in Wi-Fi module simplifies firmware updates and configuration via a WebUI on your PC or mobile device. With ultra-low latency and high refresh rates, the XR2 stands out in Whoops, micro drones, and fixed-wing models, where every gram and millimeter counts for peak performance.

Specification:
Brand: RadioMaster
Item: XR2 Nano 2.4GHz ExpressLRS Receiver
Type: ISM_2.4
MCU: ESP32C3
RF Chip: Semtech LR1121
Antenna: Integrated 2.4GHz Tower Antenna
Frequency Range: 2.400 - 2.479GHz
Telemetry Power: 10mW
Maximum Packet Rate: DK500Hz
Minimum Packet Refresh Rate: 50Hz
Working Voltage: 5V
Weight: 0.8g
Dimension: 16mm*12mm*6mm
Firmware Version: ExpressLRS v3.5.1 Pre-installed
FW Target: RadioMaster XR2 2.4 RX
Bus Interface 1: CRSF
Bus Interface 2: UART

Feature:
* Integrated 2.4GHz tower antenna

* ExpressLRS 2.4GHz

* ESP32C3 high-performance MCU

* Semtech LR1121 Transceiver

* Secondary UART port for advanced functionality

* Castled pads for easy soldering
Package included:

1 * XR2 Nano 2.4GHz ExpressLRS Receiver1 * CRSF Wire3 * Heat-Shrinkable Tube1 * Manual Card