1. Introduction
Thank you for choosing the EVATEK Wireless HDMI Transmitter and Receiver. This device provides a convenient and efficient solution for wirelessly transmitting high-definition video and audio signals. Designed for ease of use, it features plug-and-play functionality, eliminating the need for complex configurations, apps, or Wi-Fi connections. This manual will guide you through the setup, operation, and maintenance of your device to ensure optimal performance.

2. Product Overview
2.1. Components
The package includes the following items:
- 1x Wireless HDMI Transmitter (TX)
- 1x Wireless HDMI Receiver (RX)
- 1x Mini HDMI to HDMI Adapter
- 1x Micro HDMI to HDMI Adapter
- 1x USB-C to HDMI 4K Adapter
- 2x USB-C Power Cables
- 1x Instruction Manual

2.2. Key Features
- Plug and Play: No software installation, applications, Bluetooth, or Wi-Fi configuration required.
- Extended Wireless Range: Supports transmission distances up to 328 feet (100 meters).
- High-Quality Video Output: Features 4K decoding and 1080P/60Hz Full HD output for clear and stable visuals.
- Dual Display Modes: Supports both extended mode and duplicate mode for versatile screen sharing.
- Wide Compatibility: Compatible with various HDMI input devices (laptops, PCs, set-top boxes, cameras) and output devices (projectors, monitors, HDTVs).
- Dual-Band Transmission: Utilizes 2.4G/5G dual-band chip for stable signal transmission.
- Portable Design: Compact and lightweight, ideal for travel and various environments.

3. Setup Instructions
Follow these steps to set up your EVATEK Wireless HDMI system:
- Install the Receiver (RX):
- Plug the Receiver (RX) into an HDMI input port on your monitor, TV, or projector.
- Connect a USB-C power cable to the RX unit and to a power source (at least 5V/1A).
- Wait approximately 10 seconds until a QR code or the system's standby screen appears on the display.
- Install the Transmitter (TX):
- Plug the Transmitter (TX) into the HDMI output port of your source device, such as a laptop, PC, or set-top box.
- Connect a USB-C power cable to the TX unit and to a power source (at least 5V/1A).
- Wait for approximately 30 seconds. The system will automatically connect the TX to the RX and activate the screen.
- Status Display:
- The receiver indicator light should remain constantly on.
- The transmitter indicator light will change from blinking to a constant state once a stable connection is established.
Note: Ensure both the Transmitter (TX) and Receiver (RX) units are powered correctly for proper operation.

4. Operating Instructions
4.1. Basic Operation
Once both the Transmitter (TX) and Receiver (RX) are properly connected and powered, the system will automatically establish a wireless connection. Your source device's display will then be mirrored or extended to the connected display.
4.2. Display Modes
The EVATEK Wireless HDMI system supports two primary display modes:
- Duplicate Mode (Mirror Mode): The external display shows the exact same content as your source device's screen. This is ideal for presentations or sharing content directly.
- Extended Mode: The external display acts as a separate screen, allowing you to extend your desktop space. This is useful for multitasking, such as having different applications open on each screen.
You can typically switch between these modes through your computer's display settings (e.g., Windows Display Settings or macOS System Preferences).

5. Maintenance
To ensure the longevity and optimal performance of your EVATEK Wireless HDMI system, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the devices. Avoid using liquid cleaners or abrasive materials.
- Storage: Store the devices in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the units with care to prevent physical damage. Avoid dropping or subjecting them to strong impacts.
- Power: Always use the provided USB-C power cables and ensure the power source meets the 5V/1A requirement for stable operation.
6. Troubleshooting
If you encounter issues with your EVATEK Wireless HDMI system, please refer to the following common problems and solutions:
- No Signal/Black Screen:
- Ensure both the TX and RX units are properly powered (indicator lights should be solid).
- Verify that the HDMI cables and adapters are securely connected to both the source and display devices.
- Confirm that your display device is set to the correct HDMI input source.
- For tablets and mobile phones, ensure the connected port itself supports HDMI signal output.
- Intermittent Signal/Poor Quality:
- Reduce the distance between the TX and RX units.
- Minimize obstacles (walls, furniture) between the units, as these can affect transmission distance and speed.
- Ensure there are no strong sources of interference (e.g., other 2.4G/5G wireless devices) nearby.
- Lag or Stuttering Video:
- Check for potential interference as mentioned above.
- Ensure your source device is outputting a stable signal.
- While the device supports 4K decoding and 1080P/60Hz output, performance can be affected by environmental factors.
- Compatibility Issues:
- This product is designed for one-to-one transmission and does not support mixed use with one-to-two products.
If these steps do not resolve your issue, please contact our professional technical support team for further assistance.
7. Specifications
| Model Number | DT276W-A-28 |
| Product Dimensions | 2.42 x 0.83 x 0.47 inches |
| Item Weight | 5.3 ounces |
| Connectivity Technology | HDMI |
| Controller Type | Button Control |
| Special Feature | Lightweight |
| Compatible Devices | Laptop, Personal Computer, Set Top Box, Streaming Device |
| Total HDMI Ports | 2 (1 TX, 1 RX) |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 2.1 |
| Video Encoding | H.264, H.265/HEVC |
8. Warranty and Support
EVATEK is committed to providing high-quality products and excellent customer service.
- Warranty: This product comes with a 24-month quality replacement service.
- After-Sales Support: We offer 365 days of after-sales support to ensure the best service experience.
- Customer Service: Our 24-hour online customer service team is available to assist you with any problems or questions you may have.
For technical assistance or warranty claims, please contact our professional technical team through the contact information provided with your purchase or on the official EVATEK website.