It is the best in wireless mouse without a dongle, but only for up to 2 years. After that, it needs replacement (I had 2 others and the left button broke on my first one, and the scroll wheel broke on my second one).

I give it 3 stars because after a year of use, unfortunately, one wheel catches and the other doesn't! Without any falls and with simple use (djing), it has good connectivity and is very convenient

It does not have a bt dongle, so for desktop use it requires an additional peripheral. It is only compatible with Windows 10 (I did not try it on Linux), on Windows Mobile 10, it connected, and had bt above 4.
Overall, I consider the purchase a double failure since I bought two, one for a friend which I paid for after leading him to the wrong purchase.
Even at the approximately 15 euros I acquired it for, I consider it a failure for desktop use.

I acknowledge that it is a Microsoft mouse that is not compatible with their operating systems.

It disconnects on purpose.
To reconnect, you need to disconnect and connect again.
Tested on a new laptop, as well as on a desktop.
Do not prefer it at any price

Bought 2 days ago. Connected in seconds to HP laptop with Windows 10. Flawless operation in the first 48 hours. Never lost connection with the laptop. Works on all surfaces. Lightweight with a good, comfortable grip in the hand. Excellent scrolling wheel. Loses immediate responsiveness at a distance of 3 meters. 8/11/2021 After many attempts, it does not connect to another HP laptop with Windows 10.

User already 2 years on mac, I decided to get a second one for home.
Three buttons, good and relatively soft middle button. No problem with its connectivity.

Update 28/8/22
2.5 years later, the left click works whenever it remembers to...
Sometimes, with one click, it registers 2-3 clicks or none at all...
The scroll wheel has become excessively smooth and it's difficult for me to scroll...
So, I'm looking for the next mouse...

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Very good mouse.... It connects instantly to the laptop... No disconnections...
I highly recommend it.
Coming back after one year of use...
Very good mouse. The one AA battery it has easily lasts for a whole year.
It connects instantly to my Huawei laptop, mobile, and smart TV!
If I have to find a negative, I would say that its clicks are not silent...
Other than that, the mouse is flawless.

I can't get into games and play because it has this annoying right click that if you press it, you will exit the game or an application you have entered

The most user-friendly mouse I have ever used. I bought it again after 2-3 years of relentless use

I bought it to play Minecraft on my new Samsung Galaxy Tab S4. I wasn't comfortable only with the keyboard, and it works on Android 8.1. Get it for all Android versions except 4.4.4 and above. ☺☺☺☕

Very good battery life for Bluetooth! You forget to change the battery! I don't know how it works with Windows, but with Linux on a five-year-old netbook, it works perfectly.

Small user-friendly size, good non-slip grip, smooth scrolling, however, it often gets stuck (requires dragging to unstick) and eventually loses connection with the Bluetooth source more frequently, requiring reconnection. After 9 months of frustrating operation, it completely lost the ability to connect (Refuses to enter Bluetooth pairing mode). Failure.

Pathetic, especially when you have to use it with Windows 10. I have to constantly pair it every now and then, and even then it doesn't always connect. The fact that it's made by Microsoft (the same company as Windows) is beyond me!

Very convenient and user-friendly mouse.
One of the cheapest in its category.
It connects instantly, but if you don't use it for a while, you need to pair it again after canceling the previous connection (Windows 10).
I don't understand why wireless Bluetooth mice are not used more often on laptops, instead of using wireless ones with a USB receiver that take up a port.

I have used countless wireless mice. It's superb, it never lags, it never disconnects, it has perfect responsiveness. It's worth every penny, even the last one!

Just so you know, I waited 6 months of daily use to judge it! Flawless, get it without fear!

Although I haven't tried many BTs of its category, I can say that it is excellent, of very good quality plastic, and with very good battery life. I got it to use with a tablet and I wanted a mouse that connects directly to the tablet's BT without a USB receiver. Also, very easy to use and connect, etc