SKU: 70537010246

Radiomaster DBR4 Dual band Xross Gemini ExpressLRS Receiver

$19.75 $21.95
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Radiomaster DBR4 Dual band Xross Gemini ExpressLRS ReceiverFeatures Telemetry RF power Max 2x 100Mw Experience unmatched reliability with dual0band ELRS Gemini Xrossband ELRS Gemini 2. 4GHz ELRS Gemini 868 915MHz 4 Discrete antennas for optimal antenna arrangement Specifications Item: DBR4 Gemini Xrossband 2. 4GHz 915MHz ExpressLRS Receiver Type: ISM2. 4G FCC 915M MCU: ESP32 RF chip: Semtech LR1121 x2 Telemetry RF power: Max 100mw Antenna 2x 2. 4GHz wire 2x 915MHz wire Frequency range: 2. 404 2. 479GHz 903. 5

Features

  • Telemetry RF power Max 2x 100Mw
  • Experience unmatched reliability with dual0band ELRS Gemini Xrossband
  • ELRS Gemini 2.4GHz
  • ELRS Gemini 868/915MHz
  • 4 Discrete antennas for optimal antenna arrangement

Specifications

  • Item: DBR4 Gemini Xrossband 2.4GHz/915MHz ExpressLRS Receiver
  • Type: ISM2.4G/FCC 915M
  • MCU: ESP32
  • RF chip: Semtech LR1121 x2
  • Telemetry RF power: Max 100mw
  • Antenna 2x 2.4GHz wire | 2x 915MHz wire
  • Frequency range: 2.404-2.479GHz / 903.5-926.9MHz
  • Maximum receive refresh rate: 500Hz 
  • Minimum receiver refresh rate: 50Hz
  • Working voltage: DC 4.5-8.0V
  • Weight: Without antennas 2.7g/ with antennas 5.3g
  • Dimension: 27.2*27.2mm
  • Firmware Version: ExpressLRS v3.3.2 pre-installed
  • Bus interface: CRSF

Includes

  • 1x DBR4 Dual band Xross Gemini ExpressLRS Receiver
  • 2x 2.4GHz wire antenna
  • 2x 915MHz wire antenna
  • 4x 100mm wires
  • 4x 4mm Red vibration dampeners
  • 4x 3mm Black vibration dampeners
  • 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: 70537010246

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4.6 ★★★★★
Based on 22 reviews
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Product Reviews
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Verified Purchase
Well Letsee
Birmingham, US
★★★★★ 5
Fits a 3.6 v6 Ram 1500 classic
Size: One Size, Style: Select
Good for my truck
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
H
Verified Purchase
HEMANG M.
Fort Morgan, US
★★★★★ 4
Excellent filter. I recommend it
Size: One Size, Style: Select
Arrived on time as promised. I was able to install it easily on my Jeep Cherokee with 3.2L engine. Good instructions and the part seems to be of good quality. Four Stars only as I have just installed it. Filters are passive components, usually can't tell of their long term quality or reliability unless they leak or cause immediate problems. I recommend this part.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
Joey Robbins
Houston, US
★★★★★ 5
Perfect fit
Size: One Size, Style: Select
Been using these for years and always hold up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
R
Verified Purchase
Rick
Bozeman, US
★★★★★ 5
2016 Acura Air Filter
Air filter for my 2016 Acura RDX fit great, installed it myself in one minute. Arrived at my house on time and in good condition, driver very courteous and respectful. Thank you very much Rick F.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
J
Verified Purchase
J
Carnegie, US
★★★★★ 5
Nice filter
Nice filter for acura rdx. Easy to install. Well priced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026

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