RadioMaster XR1 Multi-Frequency ExpressLRS Reciever
SKU: 40071249526

RadioMaster XR1 Multi-Frequency ExpressLRS Reciever

Sale price$14.40 Regular price$16.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

RadioMaster XR1 Multi-Frequency ExpressLRS RecieverThe XR1 Receiver is a versatile, ultra compact ExpressLRS receiver, measuring just 20 x 13mm. Powered by the advanced third generation Semtech LR1121 transceiver, the XR1 operates seamlessly on 2. 4GHz OR Sub G 900MHz bands. Whether youre flying on 2. 4GHz or 900MHz, the XR1 delivers exceptional range and sensitivity in a small, lightweight package perfect for any build. With the reliability of ExpressLRS, you can focus on flying without worrying

The XR1 Receiver is a versatile, ultra-compact ExpressLRS receiver, measuring just 20 x 13mm. Powered by the advanced third-generation Semtech LR1121 transceiver, the XR1 operates seamlessly on 2.4GHz OR Sub-G 900MHz bands. Whether you’re flying on 2.4GHz or 900MHz, the XR1 delivers exceptional range and sensitivity in a small, lightweight package — perfect for any build. With the reliability of ExpressLRS, you can focus on flying without worrying about link quality.

Designed for convenience, the XR1 features built-in Wi-Fi for effortless configuration and firmware updates. Access and manage settings through an intuitive WebUI on your PC or mobile device with ease.

 

Features

  • Telemetry RF power: 100mW
  • ExpressLRS 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 (Either 2.4GHz, 900Mhz or Dual-band depending on selected 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

Tailored to Your Needs

The XR1 Receiver is available in three configurations, ensuring you have the flexibility to meet your exact requirements: Choose between 2.4GHz, Sub-G 900MHz, or a Dual-Band antenna that allows switching between 2.4Ghz and 900Mhz without an antenna change! All antenna types are available as optional accessories so you can change frequency at a later stage without needing to purchase a new receiver!

 

Includes

  • 1x XR1 Nano Multi-Frequency ExpressLRS Receiver
  • 1x T Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package)
  • 1x CRSF wire
  • 3x Heat-Shrinkable Tube
  • 1x Manual Card

 

 

 

 

 

 

 

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40071249526

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K
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Kindle Customer
Chelsea, US
★★★★★ 5
My dogs love these things
Color: 12 Tennis Ball
My dogs love these things. I think I bought it twice now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
K
Verified Purchase
Ken
Fort Morgan, US
★★★★★ 5
Tennis balls
Color: Squeaky-Multi Colors, Size: 2.5"(Medium)-12 Pack
Nice tennis balls, my dog loves them! Great value.
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Reviewed in the United States on May 25, 2026
L
Verified Purchase
Lynn Dion
Bozeman, US
★★★★★ 5
Bright color and tough skin both great
Color: Regular-Orange, Size: 2.5"(Medium)-12 Pack
These tennis-style balls are, as promised, much tougher and thicker-skinned than an ordinary tennis ball, being made as a fetching ball for dogs. I bought them as foot covers for the legs of walkers used by the elderly, a very popular use. They work extremely well to protect rugs and flooring, and to make a quiet gliding cover, easier for seniors to move smoothly without snags. The usual tennis balls used for this purpose wear out pretty quickly, but this ball was made to be repeatedly fetched and gnawed on by your Rottweiler, so it's a big improvement. You will need a good cutting tool to score in the crosswise slits where you insert the walker leg; it's too tough for your household scissors, but that's just the point, right? It's tough. Very much recommended!
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Reviewed in the United States on March 8, 2024
S
Verified Purchase
SC_B2
San Leandro, US
★★★★★ 5
Not great quality
Color: Regular-Red, Size: 2.5"(Medium)-12 Pack
My dog is 7 months old, about 35lbs as of this review. These balls barely lasted a month as they all kept breaking if thrown against anything or just bounced repetitively. The color is good so that you can see it better in the dark, but I would not say these balls are worth the price. Update 2023-12: After posting my review the seller contacted me and provided me with two free sets of balls as an apology for the bad quality of the original set. So far these are holding much better with my dog and she loves to play fetch with them.
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Reviewed in the United States on November 25, 2023
K
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Karen
Fort Morgan, US
★★★★★ 4
Good minus one problem.
Color: Squeaky-Multi Colors, Size: 2.0"(Small)-4 Pack
1 of the 4 balls didn’t squeak. Other than that, good product.
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Reviewed in the United States on August 5, 2025

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