I'm sorry for not being clear on this but I'm not sure how to name it in English. I was referring to those wireless devices with a small USB receiver.
In the professional wireless development space, we call those "generic ISM band crap".
Bluetooth is way worse than good custom protocol dongles (e.g. Logitech "unifying receiver")
Re:Wireless Is a Trap
by solarkraft on Sunday June 21, 2020 @08:18AM
(#23591610)
You're correct, it's just that vendors call their proprietary non-bluetooth protocols that.
Huh? Bluetooth is 2.4GHz.