The PID is located beneath the barcode on your mouse. In the following window, enter your mouse PID. Wireless Mobile Mouse 3500) and hit Enterģ. In the search box, type the name of your mouse(eg. Start by going to this Microsoft Product Support page.Ģ. It took some hunting, but I sent an email out to a support representative, and he is sending me out an entirely new mouse/transceiver pair! This will work for you as well, just do the following:ġ. At this point, I decided to contact Microsoft. When searching for more information about the transceivers, I found that each transceiver is paired with a wireless device from factory, and that there is no way to pair another transceiver with a device. Microsoft Wireless Mobile Mouse 4000 and Nano Transceiver Earlier this month, I lost my 3500's transceiver. My favorite feature is their 'Nano Transceiver,' which fits right in my desktop keyboard's built in hub, as well as my laptop, without sticking out to be broken off. I grabbed both of them on sale, and have used them profusely for over a year now. I personally have a Microsoft Wireless Mobile Mouse 4000 and Wireless Mobile Mouse 3500. Microsoft makes some great peripheral hardware.