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Sorry I phrased my initial reply really poorly. What I meant was that most wireless mice are not Bluetooth despite both using 2.4ghz. A generic 2.4ghz wireless device requires the dongle because it's signal uses a proprietary radio signal and cannot be picked up by a Bluetooth receiver.
The mouse you linked should work just fine without a dongle with you laptop
±ln(x)
hugo7
I haven't bought it yet... and idk if it really matters.
Basically I recently discovered I have BT on my laptop, and I keep meaning to get a small mouse for it anyway, so I've gone down the typical pre-purchase amazon-wormhole and ended up at wireless mice.
I'd rather not have a USB dongle for it, as the main draw for me of a wireless mouse is not taking up a USB slot. Otherwise I may as well just blag a normal mouse from somewhere.
I'm looking at this Logitech M590 in grey as it seems like good value. But part of choosing it is based on the assumption that I can use it without the dongle.
https://www.amazon.co.uk/Logitech-Wireless-Multi-Device-Bluetooth-Windows/dp/B071KZS3MJ/ref=sr_1_7?ie=UTF8&qid=1548934196&sr=8-7&keywords=MX%2BAnywhere%2B2S&th=1
EDIT: Just checking my laptop and it shows the bluetooth as:
which I think means it's Bluetooth 2.1 - i.e. too old for any modern BT devices using Bluetooth Low Energy Technology