Hard buttons, difficult to click, cheap construction (but you get what you pay for), definitely not suitable for gaming, somewhat slow response to clicks, and indeed the battery cover does come off as another user mentioned, but at least it doesn't double click like the mice I've bought recently and it's also cute.

I have had the mouse for 5 months and it is comfortable and small. The only problem is that the sensor it has is not good, and in some movements you make while playing (e.g. turning the camera in a game), the cursor of the mouse will not move or instead of turning the camera to the left, it will turn it to the right, and this is due to the sensor of the mouse (the laser). Despite all this, I am satisfied with the size and design.

It is very decent for its price.
I mainly wanted it for the extra buttons on the side.
It makes more noise than a more expensive mouse, but for 10 euros we can't have it all.

The worst mouse on the market. Bought it for use on a laptop, and I have to say that the laptop's mouse is far superior to this one. The whole casing creaks, it has a mind of its own when it comes to the batteries, and it opens whenever it wants to. Its response is slower than the service in the Greek public sector. Yes, it's a budget mouse, but it's not even worth it for free. A thousand times better to get a different mouse than this one. Stay away!

For the past 5 years, I have been using the Logitech G300 as my main PC mouse and I haven't found any other mouse that suits me as well. So, when I set up a second system, I was looking for a cheap substitute. It doesn't have the weight of the G300 and it doesn't come with software, but at least in terms of design and grip, it is very close and that's what I wanted. Since I wanted it for gaming, I specifically went for the wired option, but by mistake, I ended up with the wireless one. Initially, I was disappointed because I thought that a wireless mouse for 10 euros would constantly lag and its movement wouldn't be smooth in games. However, I was wrong because it feels like having a wired mouse and there is no difference. The problem occurred elsewhere. While it worked fine left to right, it seemed to get stuck when moving up and down, as if something was obstructing its fast movement. I solved this by removing some stickers from the bottom and after tinkering with it, I opened it up and added 2 weights internally to add some weight. Obviously, the warranty is no longer valid, but it only cost me 10 euros and I brought it to where I wanted it to be. It has 3 standard DPI options that cannot be adjusted (if you want, you can adjust the speed through Windows to bring it exactly where you want it). It also has 2 side buttons for forward and backward in browsing. It is a very decent and nice mouse for the 10 euros it will cost you if you are looking for something economical.