SKU: 70537010246

Radiomaster DBR4 Dual band Xross Gemini ExpressLRS Receiver

Sale price$19.75 Regular price$21.95
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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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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4.7 ★★★★★
Based on 11 reviews
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Verified Purchase
Rachel D.
Los Angeles, US
★★★★★ 4
Good sock but thick
Color: (001) Black / Black / Castlerock, Size: Small
These Under Armour socks are high quality and definitely durable, with great cushioning and a solid fit that stays in place throughout the day. The material feels supportive and they hold up well after multiple washes without losing shape. My only minor downside is that they’re thicker than I expected. They feel more like a heavy-duty training sock, which is great for colder weather or intense workouts, but a bit bulky for everyday sneakers or warmer days. That said, the quality is excellent, and if you prefer a thicker, more cushioned sock, these are perfect. Just something to be aware of depending on how you plan to use them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
C
Verified Purchase
Christina Gary
Dallas, US
★★★★★ 5
Black Under Armor Socks
Color: (001) Black / Black / Castlerock, Size: Medium
They fit perfect. I bought them for my Boyfriend & most pairs are too big or not Really no shows like they say. If they have white ones, I will be purchasing more.
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Reviewed in the United States on May 26, 2026
J
Verified Purchase
Joseph Pratt
Birmingham, US
★★★★★ 5
Great product.
Color: (001) Black / Black / Castlerock, Size: Medium
🙏🙏🙏
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Reviewed in the United States on May 16, 2026
M
Verified Purchase
Matthew J Hughes
Cuba, US
★★★★★ 5
Fits well! XL is Real!
Color: (239) Elite Beige / Elite Beige / Halo Gray, Size: X-Large
As far as I know, these are the only XL no show tan socks on Amazon that actually fit a size 14 foot. I've tried a few other that don't fit after wearing them once. This is a regular feeling sock and not the thin hose type like other XL.
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Reviewed in the United States on April 21, 2026
T
Verified Purchase
The bookish health nut
Cuba, US
★★★★★ 5
Absolutely Essential for Any Athlete or Gym-Goer!
Size: Large, Color: (035) Steel / White / Black
I recently purchased the Under Armour Unisex-Adult Training Cotton No Show Socks 6 Pack, and I must say, they've become an indispensable part of my workout gear. Here's why these socks are a game-changer: Comfort Above All: These socks are incredibly comfortable. Made from a blend of cotton and synthetic fibers, they provide just the right amount of cushioning without feeling bulky. Whether I'm running, lifting weights, or doing yoga, my feet feel supported yet free. No Show, All Go: True to their name, these socks stay perfectly in place without slipping down into my shoes. This is crucial for maintaining a professional look at the gym or during sports activities. No more embarrassing sock peeks or having to constantly adjust them. Durability: For the price, these socks hold up remarkably well. I've washed them multiple times, and they haven't lost their shape or elasticity. They've survived the rigors of both my workouts and laundry day. Breathability: The material mix allows for excellent breathability. My feet stay dry and cool, reducing the chances of blisters or discomfort during long sessions. Pack Value: Getting six pairs in one go is fantastic. It means I always have a fresh pair ready, which is perfect for someone like me who works out frequently. Fit for All: These socks fit true to size and are designed to be unisex, making them a versatile choice for anyone looking to upgrade their sock game. If you're in the market for socks that combine comfort, performance, and style, look no further. Under Armour has nailed it with these no-show socks. They've quickly become a staple in my wardrobe, and I find myself reaching for them over any other sock I own. Highly recommended for anyone serious about their fitness routine or just wanting reliable, high-quality socks. 5 out of 5 stars - These socks are a must-have!
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Reviewed in the United States on August 25, 2024

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