Sony KD-50X81J TV Remote Control

$28.99

Sony KD-50X81J remote replacement runs playback, volume, power, and Android TV navigation, putting menus and setup back in the owner’s hands (part number RMF-TX520U).

56 in stock

SKU: SN-KD50X81J Categories: ,
Description

About This Remote

Sony’s KD-50X81J is a 50-inch 4K UHD Android TV from 2021, and when its remote stops working, every Google TV menu, HDR playback mode, and voice command becomes harder to reach. The replacement sold on this page is part number RMF-TX520U; it includes a microphone button so voice search works exactly as it did when the television was new. Layout and button assignments match what Sony built into the original KD-50X81J remote, putting the everyday controls right where your thumb expects them.

This remote requires pairing with the KD-50X81J before use. It runs on 2 x AAA batteries.

Why buy this remote

  • Controls the Sony KD-50X81J’s full Android TV and Google TV interface, including menus and settings.
  • Includes a working microphone button so voice search works across Google TV and supported apps.
  • Puts the everyday controls right where your thumb expects them for the 2021 KD-50X81J, covering power, volume, and playback.
  • Works with the KD-50X81J’s HDR10, HLG, and Dolby Vision picture modes through the same standard remote commands.

Compatible part numbers

Sony KD-50X81J Remote Specifications
Batteries2 x AAA
Part numberRMF-TX520U
Device TypeTV
Warranty1 year

Sony KD-50X81J TV Specifications

Screen size 50 inch
Resolution 3840 x 2160 (4K UHD)
Panel type LCD
Backlight Direct LED (Frame Dimming)
Processor 4K HDR Processor X1
Refresh rate Native 60 Hz / 50 Hz (Motionflow XR 240)
HDR compatibility HDR10, HLG, Dolby Vision
Smart TV Android TV (Google TV UI)
Internal storage / RAM 16 GB / 4 GB
Audio output 10W + 10W, X-Balanced Speaker, Dolby Atmos
HDMI ports 4 x HDMI 2.1 (eARC/ALLM supported)
USB ports 2
Wireless Wi-Fi 802.11a/b/g/n/ac, Bluetooth 4.2
Dimensions (without stand) 44.3 x 25.7 x 2.8 inches
Weight (without stand) 27.1 lbs

Frequently asked questions

Will this remote work with my Sony KD-50X81J TV right away, or does it need setup?

The RMF-TX520U remote control requires pairing with the KD-50X81J before it will respond. Follow the on-screen pairing instructions that appear when the TV detects a new Bluetooth remote.

Which part number does this replacement carry?

This remote is sold under part number RMF-TX520U. That is the Sony part number for this model remote control.

What batteries does the RMF-TX520U remote use?

It takes 2 x AAA batteries, which are not included.

What picture and audio formats does the Sony KD-50X81J support through this remote?

The KD-50X81J handles HDR10, HLG, and Dolby Vision for picture, and Dolby Atmos for audio. This remote gives full access to the picture and sound settings that govern those formats.

How many HDMI ports does the KD-50X81J have, and can I switch between them with this remote?

The TV has four HDMI 2.1 ports with eARC and ALLM support. Input switching is a standard function this remote controls through the TV's input menu.

Additional information
Compatible BrandSony
Device TypeTV
Compatible ModelKD-50X81J
Power Source2 x AAA
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Shipping and Delivery

📦 Shipping Information

At USA Remotes, we’re committed to getting your replacement remote to you fast, free, and hassle-free — the same way your remote shows up ready to use, with no pairing or programming. Below you’ll find everything you need to know about how we ship, how long it takes, and what to do if anything goes sideways.


🚚 How much does shipping cost?

Shipping is free on every order — always. No minimum purchase, no handling fees, and no surprise charges at checkout. The price you see is the price you pay.


🏢 Where do you ship from?

Every order ships from our U.S. fulfillment center. We’re a U.S.-based company, so your remote never sits in customs or crawls in from overseas — it ships domestically and arrives quickly.


⏱️ When will my order ship?

We move fast. Orders placed before 2:00 PM Mountain Time (MT) on a business day ship the same day. Orders placed after the cutoff, on weekends, or on public holidays ship the next business day.

Business days are Monday through Friday, excluding national holidays.


🚀 How long will it take to arrive?

Once your order leaves our warehouse, most deliveries arrive within 2–4 business days. Paired with same-day processing, the majority of customers have their remote in hand within just a few days of ordering.

Delivery windows are estimates, not guarantees, and can run a little longer during weekends, holidays, peak seasons, or severe weather.


⚡ Do you offer faster (expedited) shipping?

We don’t currently sell a separate paid expedited option, but many orders go out via USPS Priority Mail, which typically reaches most U.S. addresses in 2–3 business days at no extra cost.

If you’re in a time-sensitive situation, email us at cs@usaremotes.com before you order and we’ll let you know what’s possible.


📬 Which carriers do you use?

Because remotes are small and light, the vast majority of orders ship via USPS (United States Postal Service) — usually USPS Ground Advantage or Priority Mail. For larger multi-remote orders we may use UPS or FedEx. The carrier is selected automatically to get your order to you as quickly and safely as possible.


🌎 Do you ship internationally?

Yes — we ship internationally. International orders typically arrive within 8–14 business days, depending on your destination and how long it spends in local customs. Carriers and shipping methods vary from country to country, so your order travels the most efficient route available.

Please note: international shipments may be subject to customs duties, taxes, or import fees charged by the destination country. These are set by your local customs authority and are the responsibility of the recipient.


🏝️ Do you ship to Alaska, Hawaii, U.S. territories, and military addresses?

Yes. We ship to all 50 states, U.S. territories (including Puerto Rico, Guam, and the U.S. Virgin Islands), and APO/FPO/DPO military addresses. Because these rely on USPS, transit times may run a bit longer than the standard 2–4 business days.


📮 Do you deliver to PO Boxes?

Absolutely. Since most orders ship via USPS, PO Box delivery is no problem. On the rare occasion an order ships via UPS or FedEx, we may reach out for a physical street address.


🔍 How do I track my order?

As soon as your order ships, we’ll email you a tracking number. You can also check your status anytime on our Track Your Order page. If you don’t see the email within a day of ordering, check your spam folder or get in touch.


📧 Why does my order say “Completed”?

When your order ships, you’ll get a confirmation email and your order status will change to “Completed.” That wording can be a little misleading — “Completed” simply means your order has shipped and left our warehouse, not that it’s already been delivered. Just use the tracking number in your email to follow it the rest of the way to your door.


📭 My tracking number isn’t updating — what should I do?

It’s normal for tracking to go quiet for a day or two, especially right after a label is created or over a weekend — carriers don’t scan a package at every stop. If there’s no movement for more than 3–4 business days, email us at cs@usaremotes.com and we’ll chase it down for you.


📦 My tracking says “Delivered” but I don’t have it

If the carrier marked your package delivered but it’s not in your hands:

  1. Check around your home — porch, mailbox, side door, garage, or wherever packages usually land.
  2. Ask household members or neighbors in case someone brought it in for you.
  3. Wait 24 hours — packages are sometimes scanned as delivered slightly before they actually arrive.

If it still hasn’t turned up:

  • Contact your local USPS office — they can pull GPS delivery confirmation showing exactly where the package was scanned.
  • Contact us at cs@usaremotes.com or (720) 204-8889. We’ll help open an investigation and retrieve the GPS scan data if needed.

Insurance: Our shipments include carrier insurance against loss or damage. We’ll guide you through the claim process with the carrier and stay on it until it’s resolved.


💔 My remote arrived damaged or doesn’t work

Every remote is tested and packed with care, but if yours shows up damaged or has a defect, you’re covered by our 1-year warranty and full compatibility guarantee. Just contact us at cs@usaremotes.com with your order number (and a quick photo if it’s physically damaged), and we’ll arrange a replacement or refund right away. Full details are in our Returns & Refunds policy.


🏠 What if I entered the wrong address?

If you spot a mistake in your shipping address, contact us immediately. If your order hasn’t shipped yet, we can fix it. If a package comes back to us as undeliverable (wrong or incomplete address), we’ll reach out to arrange a re-ship to the correct address.


🔀 Why did my order arrive in separate packages?

If you ordered more than one remote, your items may occasionally ship in separate packages or arrive on different days. Each shipment gets its own tracking number, so don’t worry if one lands before the other.


❄️ Holiday & weather delays

Carrier networks slow down during major holidays and severe weather. We still ship on our normal same-day schedule, but transit times may stretch during these periods — and once a package is with the carrier, those delays are outside our control.


✅ Our commitment to you

Your satisfaction is our priority. If anything goes wrong with your shipment, we’ll work directly with USPS or the relevant carrier to make it right and get your remote to you safely. Nobody should be stuck without a way to control their TV, sound bar, or AC.


📞 Still have questions?

We’re happy to help.

  • Email: cs@usaremotes.com
  • Phone: (720) 204-8889
  • We typically reply within one business day.