Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your Easytry123 Voice Remote Control, model RMF-TX300J. This replacement remote is designed for various Sony 4K HDR Ultra HD OLED TVs, including models XBR-65X850E, XBR-75X850E, XBR-55X806E, KD-65XD7504, KD-65XD7505, XBR-65X935D, XBR-65X937D, and XBR-75X850D. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.
Setup
1. Battery Installation
The remote control requires two (2) AAA batteries (not included). Follow these steps to install them:
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards or press the latch to open it.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Replace the battery compartment cover by sliding it back into place until it clicks securely.

Figure 1: Battery compartment with cover removed.
2. Initial Pairing (if applicable)
This remote control is designed as a replacement. In most cases, it should work directly with compatible Sony TV models without complex pairing. If the remote does not respond, ensure the TV is powered on and try pressing any button. For voice control functionality, specific pairing steps might be required by your TV model. Refer to your television's original user manual for detailed pairing instructions for voice-enabled remotes.
Operating Instructions
This remote control provides standard television control functions, including power, volume, channel navigation, input selection, and smart TV app access. The layout is intuitive for ease of use.

Figure 2: Front view of the remote control.
Key Functions:
- Power Button: Located at the top right, used to turn the TV on or off.
- Input Select: Button at the top left to cycle through video inputs (HDMI, AV, etc.).
- Number Pad (0-9): For direct channel entry.
- Volume Up/Down: Buttons labeled "+" and "-" for adjusting audio volume.
- Channel Up/Down: Buttons labeled "+" and "-" for navigating channels.
- Navigation Pad (Directional Arrows and Enter): Used to navigate menus and select options.
- Back Button: Returns to the previous screen or menu.
- Home/Menu Button: Accesses the TV's main menu or smart hub.
- Voice Control Button (Microphone Icon): Activates voice commands. Press and hold while speaking your command.
- Dedicated App Buttons: Quick access to streaming services like Netflix and Google Play.
- Playback Controls: Play, Pause, Fast Forward, Rewind buttons for media playback.

Figure 3: Side profile of the remote control.
Maintenance
To ensure the longevity and proper functioning of your remote control, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the remote. For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Do not use harsh chemicals or abrasive materials.
- Battery Replacement: Replace batteries when the remote's response becomes sluggish or stops working. Always replace both batteries at the same time with new ones of the same type (AAA).
- Storage: Store the remote in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Avoid Drops: Protect the remote from physical impact, as drops can damage internal components.
- Liquid Exposure: Keep the remote away from liquids. If liquid spills on the remote, remove batteries immediately and allow it to dry completely before reinserting them.
Troubleshooting
If you experience issues with your remote control, try the following troubleshooting steps:
| Problem | Possible Cause / Solution |
|---|---|
| Remote not responding. |
|
| Voice control not working. |
|
| Some buttons not working. |
|
| Short operating range. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | RMF-TX300J |
| Brand | Easytry123 |
| Compatible Devices | Sony Televisions (e.g., XBR-65X850E, XBR-75X850E, XBR-55X806E, KD-65XD7504, KD-65XD7505, XBR-65X935D, XBR-65X937D, XBR-75X850D) |
| Connectivity Technology | Infrared |
| Controller Type | Button Control, Voice Control |
| Special Feature | Ergonomic |
| Batteries Required | 2 x AAA (not included) |
| Manufacturer | Easytry123 |
Warranty and Support
This product is a replacement remote control. Information regarding specific warranty terms is not provided with this manual. For any support inquiries or issues not covered in this manual, please refer to the seller or the original product listing where you purchased this item. It is important to note that replacement items may not work with all functions as the original remote.