is there anything that can be done if you lose the usb thingy for a wireless mouse and keyboard?
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@Felthry Unless it's a shared transceiver spec across that manufacturer's products, akin to how Logitech has one transceiver dongle type for all their wireless gear, I doubt it. Might be worth contacting the manufacturer all the same, though.
@LexYeen it is logitech branded
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@Felthry Huh! Well, you might be able to source a replacement transceiver then!
@LexYeen Is there any way we can get one today, or is that the kind of thing you have to order online? i would love if we could just go to the local supermarket's electronics department and get one
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@Felthry Unfortunately, I don't know how readily available such things are in brick-and-mortar stores, as I don't do much shopping in such places.
That said, they're typically in the US$15-25 range, and Logitech is apparently happy to sell spare parts directly. Here's their page for that: https://support.logi.com/hc/en-us/articles/360025903194--Spare-Parts
@LexYeen ...$15 is what we paid for the whole keyboard and mouse set
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@LexYeen oh, and they say "therea re no spare parts available for this product", so i guess we're out of luck
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@Felthry Eugh. Well, there's always the ebay/amazon gamble, I guess? 
@LexYeen sorry, i realize you probably don't know, i shouldn't be asking you to be customer support
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@Felthry Nah, s'alright, I like helping folks problem-solve! 💙
@LexYeen well in the process of trying to figure out where the hell the receiver for that mouse ended up, we found the one we'd lost, so.... problem solved?
no idea where that other one is, but the mouse it goes with doesn't work anymore anyway
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@Felthry Hmmm. It'd be worth a shot, it's not like it'd break anything to try!