Hi Alberto, Thanks for reaching out to us. I would like to inform you that you can find the connectivity type of our Logitech products from our official Logitech website. Also, I will help you with the products compatible with Unifying USB receiver. Logitech Unifying Software. Check our Logitech Warranty here. Make the Most of your warranty. Register Your Product FIle a Warranty Claim. Logitech is the leader in the Mouse and Keyboard segment. Their keyboards and mice are used all over the world because of their quality and reliability. Their wireless range of keyboards and mice are also very top notch and now they come with their proprietary Logitech Unifying technology. Logitech M510 Wireless Computer Mouse – Comfortable Shape with USB Unifying Receiver, with Back/Forward Buttons and Side-to-Side Scrolling, Red 4.6 out. Logitech Harmony remote controls are easy to setup, easy to use, support 270,000+ devices from 6,000+ brands. Simply powerful control.

It's super easy to lose one of those little receiving dongles that come with a Logitech keyboard & mouse. So what do you do when you lose one of them?

Option A: Download Logitech Unifying Software

You need a Unifying dongle for this to work. You can check if your dongle supports the Unifying software if it has a small orange logo on it:

If you don't have a Unifying dongle, you can buy one for $15.

Logitech Unifying dongles are designed to manage the connection for six or seven wireless Logitech products at a time so long as the products are also marked with the orange Unifying logo.However, please note that a mouse can only be paired with one receiver at a time — so if you pair a mouse with a Logitech unifying receiver, it will no longer work with its original receiver, should you still have it.

Logitech Unifying Remote Download

Once you have a unifying receiver, the next step is to get it to recognize your existing mouse or keyboard. For this, you need to download the free Unifying Software from Logitech’s site. Once the software is installed, just start the program and follow the prompts.

The device you’re connecting should have an ON / OFF switch. The software looks for wireless connections and when it sees one restart, it recognizes it as the one you want to connect. The unifying software also enables you to manage the devices you currently have connected to a receiver and remove connections if needed. An animated display even indicates the device you’re currently using.

Logitech Unifying Remote Software

Option B: Download the Logitech Connection Utility

This is what you need if your keyboard & mouse do not come with a Unifying dongle. Download Logitech Connection Utility and launch the application (don't worry, it doesn't install anything).

Logitech Software Unifying Receiver Download

Click the Next button on the welcome page, and the tool will tell you to plug-in the new receiver; after that, you’ll reach the pairing screen. It’s quite simple really. Just turn off your mouse (or take out the batteries) and then turn the mouse back on. Voila, the mouse should now be paired with the receiver.