Advanced Dual-Band Technology: XR3's dual-band technology enables superior connectivity, operating seamlessly at 2.4GHz and 900Mhz. This feature ensures a stable, interference-free connection, making it an ideal choice for remote control enthusiasts who reliability Compact and design: Designed for portability and easy installation, the nano-sized receiver can be easily installed into a variety of devices without adding bulk Multi-frequency capability: The XR3 receiver is to support multiple frequencies, providing flexibility and improved signal stability to meet a variety of operating needs and environments Perfectly compatible with all for ExpressLRS remote controls and high-frequency heads Suitable for operation in remote complex environments, low noise amplifier to improve sensitivity; power amplifier to increase return distance Item: XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver Type: ISM2.4, FCC915 MCU: ESP32C3 RF Chip: LR1121 RF connector: IPEX-1 X 2 Antenna: 2x T-Antenna Frequency Range: 2.4GHz / Sub-G 900MHz Telemetry Power: 100mw Maximum receive refresh rate: DK500Hz / K1000Hz Minimum receiver refresh rate: 25Hz Working voltage: DC 5.0 - 12.6v Firmware Version: ExpressLRS v3.5.1 pre-installed FW Target: for XR3 2.4/900 Diversity RX Bus interface 1: CRSF Bus interface 2: UART The product appearance and printed words depending on the batch, but this does not affect use Colour:As Shown Material:PCB Package Contents: 1 x XR3 Receiver 2 x T-Antennas 3 x Heat Shrink Tubes 1 x CRSF Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.