RadioMaster XR1 Multi-Frequency ExpressLRS Reciever

The RadioMaster XR1 is an ultra-compact and versatile ExpressLRS receiver, only 20 x 13mm in size. Powered by the advanced third - generation Semtech LR1121 transceiver, it works smoothly on both 2.4GHz and Sub - G 900MHz bands. Whether you choose 2.4GHz or 900MHz, it offers great range and sensitivity in a small, lightweight package, perfect for any build. With ExpressLRS reliability, you can focus on flying without link - quality worries. It comes with built - in Wi - Fi for easy configuration and firmware updates. You can access and manage settings through an intuitive WebUI on your PC or mobile device. **Features:** - Telemetry RF power: 100mW - ExpressLRS on 2.4GHz or Sub - G 900MHz - ESP32C3 high - performance MCU - Semtech LR1121 2.4GHz & Sub - G 900MHz Transceiver - Secondary UART port - Castled pads for easy soldering **Specifications:** - Item: XR1 Nano Multi - Frequency ExpressLRS Receiver - Type: ISM2.4 or FCC915 - MCU: ESP32C3 - RF chip: Semtech LR1121 - RF connector: IPEX - 1 - Antenna: 1x T - Antenna (2.4GHz, 900Mhz or Dual - band depending on package) - Frequency Range: 2.4GHz or Sub - G 900MHz - Telemetry Power: 100mW - Maximum Packet rate: DK500Hz / K1000Hz - Minimum Packet refresh rate: 50Hz - Working voltage: 5V - Weight: 1.0g (without antenna) - Dimension: 20mm * 13mm * 3mm - Firmware Version: ExpressLRS v3.5.1 pre - installed - FW Target: RadioMaster XR1 2.4/900 RX - Bus interface 1: CRSF - Bus interface 2: UART **Flexible Configurations:** The XR1 is available in three setups. You can choose 2.4GHz, Sub - G 900MHz, or a Dual - Band antenna that lets you switch between 2.4Ghz and 900Mhz without changing the antenna. All antenna types are optional accessories, so you can change the frequency later without buying a new receiver. **What's Included:** - 1x XR1 Nano Multi - Frequency ExpressLRS Receiver - 1x T Antenna (2.4GHz, 900Mhz or Dual - band depending on package) - 1x CRSF wire - 3x Heat - Shrinkable Tube - 1x Manual Card

Using the RadioMaster XR1 ExpressLRS Receiver is a breeze. First, choose the antenna that suits your frequency needs - 2.4GHz, 900MHz, or the dual - band option. Connect the receiver to your device using the provided CRSF wire. Then, power it up with a 5V power source. To configure the receiver, turn on its built - in Wi - Fi. You can access the settings through the WebUI on your PC or mobile device. It's an easy way to make any adjustments you need. When it comes to flying, you don't have to worry about link quality because of the reliable ExpressLRS technology. Just focus on enjoying your flight. Here are some important notes. Make sure the working voltage is 5V. Using a different voltage might damage the receiver. Also, handle the antenna carefully as it's a key part for signal reception. For maintenance, keep the receiver clean and dry. If you need to update the firmware, you can do it easily through the built - in Wi - Fi. Just follow the instructions on the WebUI. With proper use and care, your RadioMaster XR1 will serve you well for a long time.