The Logitech USB Optical Mouse M90, with the model number 910-001793, is a basic and affordable wired mouse designed for everyday use. It offers reliable performance, a simple design, and essential functionality.

Here are the key features of the Logitech USB Optical Mouse M90:

1. Wired Connectivity: The M90 mouse connects to your computer using a USB cable. Simply plug the USB connector into a USB port, and the mouse will be ready to use without the need for additional setup or configuration.

2. Optical Tracking: The mouse utilizes optical tracking technology, which provides accurate and precise cursor control on various surfaces. This allows for smooth and responsive navigation.

3. Plug-and-Play Convenience: The M90 offers plug-and-play functionality, making it easy to set up and use. Once you plug in the USB cable, the mouse will be ready for use without requiring any additional configuration.

4. Ambidextrous Design: The mouse features an ambidextrous design, making it suitable for both right-handed and left-handed users. It offers a comfortable grip and easy access to the primary mouse buttons.

5. Compatibility: The M90 is compatible with various operating systems, including Windows, macOS, and Linux. It offers broad compatibility, allowing you to use the mouse with different computers or laptops.

6. Reliable Performance: Logitech is known for its reliable and durable products, and the M90 is designed to deliver consistent performance over time. It is built to withstand regular use and provide reliable operation.

The Logitech USB Optical Mouse M90 is a budget-friendly and straightforward wired mouse suitable for users who need a simple and reliable input device for everyday computing tasks.

I’m sorry, but I couldn’t find specific information about the Rapoo Wireless Optical Fabric Mouse M20 in my current database. It’s possible that the M20 model is relatively new or not widely documented.

However, based on the name and Rapoo’s product lineup, the Rapoo Wireless Optical Fabric Mouse M20 is likely a wireless mouse with an optical sensor and a fabric-covered surface. Here are some general features you can expect from a Rapoo wireless mouse:

1. Wireless Connectivity: The M20 mouse should offer wireless connectivity, allowing you to connect it to your computer or device without the need for cables. It may use a USB receiver that operates on the 2.4GHz frequency for a stable and reliable connection.

2. Optical Tracking: The mouse is likely equipped with an optical sensor for accurate and smooth tracking of cursor movements. This ensures precise control on different surfaces without the need for a mouse pad.

3. Fabric Cover: The M20 mouse may have a fabric-covered surface, which can provide a unique tactile experience and a comfortable grip. The fabric covering can offer a soft and smooth touch, making it pleasant to use.

4. Plug-and-Play Convenience: Most Rapoo wireless mice are designed for easy setup. Simply plug the USB receiver into a compatible USB port on your computer, and the mouse should be ready to use without the need for additional drivers or software installation.

5. Ergonomic Design: Rapoo mice often feature an ergonomic design that aims to provide comfort during prolonged use. The shape and contours of the mouse may be designed to fit the natural curve of your hand, reducing fatigue and improving overall comfort.

6. Battery Life: The M20 mouse is expected to have energy-efficient technology to maximize battery life. The actual battery life may vary depending on usage patterns, but it should provide long-lasting performance. It might be powered by a single AA or AAA battery, but the specific battery requirements may vary.

7. Compatibility: The M20 mouse should be compatible with various operating systems, such as Windows, macOS, and Linux. It should work with devices that have a USB port and support standard mouse functionality.

Please note that the above features are general expectations based on Rapoo’s product lineup, and the specific features and specifications of the Rapoo Wireless Optical Fabric Mouse M20 may vary. For the most accurate and up-to-date information, it is recommended to refer to the product documentation or contact Rapoo directly.

If you have any further questions or need more specific information about the Rapoo M20 mouse, feel free to ask.