A Wireless HDMI Extender 50m Premium is a device that allows you to transmit HDMI signals (such as video and audio) over a wireless network, without the need for physical HDMI cables. It typically supports distances of up to 50 meters (about 164 feet), depending on the model and environmental factors.

Features you may find in a Premium Wireless HDMI Extender:

1. Long-range transmission: Typically supports transmission up to 50 meters or more, which is ideal for setups where running HDMI cables is impractical.
2. High-definition support: Often supports 1080p or even 4K resolution, delivering high-quality video and audio without degradation.
3. Low latency: Premium models offer low latency (lag), ensuring smooth video streaming, which is especially important for gaming, presentations, or live events.
4. Multiple receiver support: Some models allow you to connect multiple receivers to a single transmitter, ideal for multi-room setups.
5. Plug and play: Many models are easy to set up, requiring no software or complex configuration.
6. IR (infrared) control pass-through: This feature lets you control your HDMI source (like a Blu-ray player, game console, etc.) remotely from the display side.
7. Supports multiple devices: Can often support different HDMI source devices such as gaming consoles, laptops, set-top boxes, and more.
8. Enhanced signal stability: Premium models use technologies like 5GHz wireless transmission to avoid interference from other devices and ensure more reliable signal delivery.
9. Wall/obstacle penetration: Many high-end extenders have the ability to penetrate walls or other obstructions without significant loss of signal quality.

Example of use:

• Home theater systems where you want to connect your TV or projector with a source device located in another room.
• Office environments for presentations without the need for long HDMI cables across the floor.

If you’re looking to buy one, you’ll want to verify the specific features and compatibility, as they can vary between brands. Some popular brands for wireless HDMI extenders include IOGEAR, J-Tech Digital, and Nyrius.