Here is Cool Features of Dual Wall | Live HD Wallpaper:

1. **DisplayFusion:**
- *Features:* Offers extensive features like multi-monitor taskbars, customizable hotkeys, and precise control over wallpaper settings.
- *Compatibility:* Works on Windows operating systems.
- *Additional Notes:* Provides a free version with basic features and a paid version for more advanced functionalities.

2. **Dual Monitor Tools:**
- *Features:* Basic set of tools for managing dual monitors, including individual wallpaper settings, screen savers, and taskbar management.
- *Compatibility:* Available for Windows.
- *Additional Notes:* Open-source software, which means it's free to use and can be modified by users.

3. **UltraMon:**
- *Features:* Offers advanced wallpaper management, customizable shortcuts, and enhanced multi-monitor taskbars.
- *Compatibility:* Primarily designed for Windows.
- *Additional Notes:* Provides tools for maximizing window management on multi-monitor setups.

4. **Wallpaper Engine:**
- *Features:* More than just dual wallpaper management; it allows users to create animated and interactive wallpapers. Offers a vast library of user-created wallpapers.
- *Compatibility:* Available on Windows.
- *Additional Notes:* Primarily known for its dynamic and animated wallpaper capabilities.

5. **MultiWall:**
- *Features:* Simple and lightweight tool for setting different wallpapers on each monitor. Provides drag-and-drop functionality for easy configuration.
- *Compatibility:* Available on Windows and Linux.
- *Additional Notes:* Open-source and free to use, with a focus on simplicity and ease of use.

Remember to check the specific features and compatibility of each application based on your needs and the operating system you are using. Additionally, the availability and features of these applications may change over time, so it's a good idea to check for the latest information and updates.