I have a relatively small hand, however it is still comfortable to grip. no pain using long hours. Scrolling is smooth. Programing is easy to setup.

I have always been a big fan of vertical mouses which I have used one for a while now, but when I saw this mouse that has the ultra fast scrolling wheel feature I wanted to try it out and see how it was.Build quality is good and has a solid feel to it, I love the black and gold color theme it has which gives it a premium look to it and the left and right buttons has a nice tactile feel and a more quiet click to them than a normal mouse has, more so like a hollow tone to it. While the side buttons has a more of a normal click tone to them and the best part I love is the ultra fast scrolling feature which if you flick the scroll wheel frontwards or backwards it will free spin fast but it also acts like a normal scroll wheel when moving it slow while also having tactile bumps, while not needing to push a button to switch to either of them! I have this feature on two other mouses and have always loved it but this is the first one for me that doesn't have a button to switch to them which I like a lot! And I like the magnetized cover for the USB dongle under the mouse.It is also very comfortable as a daily mouse and while it isn't meant for gaming I still played games with it which just takes time to get used while using it in games with vertical mouses, I put it this way any mouse can be used for gaming, and it does seem like it is using a good sensor which does go up to 8k DPI and it has been really smooth which I had no issues with it glitching out or any jittering, and I have medium hands and my hand fits perfect on it while reaching all the buttons.Software is very simple to use and DPI speed can be changed and polling rate up to 1000hz while also having key binding and macros and up to 4 profiles and it does show the battery percent, and speaking about battery life I have been using this mouse nonstop for going on 5 days now on 2.4GHz and have not even charged it yet and it is showing 71 percent so it does look like it will live up to the 30days claim, but do keep in mind I am mostly always in front of my computer so I am a heavy computer user. And it pairs with two of my other computers with Bluetooth and I like that it has three lights on the top showing what mode it's on while having a button to switch through the modes.Overall this is a very nice vertical mouse with the cool fast scrolling mouse wheel, just make sure you remove the plastic film on the mouse feet so it will glide smooth. And in my opinion it is a good value for the features you get with this mouse let alone with the fast mouse wheel function which I wish all mouses had it, so it does get a solid 5 stars from me, I like it??

I bought the MAM4 to relieve wrist strain, and it's been a game-changer. The shape fits my hand naturally and the build quality feels premium. It's incredibly responsive with the 8K DPI, and the tri-mode switching is seamless between my devices. If you want a comfortable, high-performance mouse for long workdays, this is it.

Doesn't move quite as easily as a regular mouse, needs higher moving surfaces. fells ok, but not as easy as flat mouse.

SUave al tacto, no molesta la mu?eca, se siente muy bien con cada click

The ergonomic design feels very natural for my hand and helps reduce wrist strain during long hours at the computer. Battery life has been excellent so far. I only needed to charge it once after many days of regular use, and the tri-mode connection worked seamlessly with both my laptop and desktop. Pairing was quick and hassle-free. Highly recommend!

Could have been great. I tested 3 vertical mice: the Razer pro click v2, the keychron m5, and this.The mam4 was the most comfortable of the 3, with the best thumb button placement, and a good comfortable wrist angle. Overall build felt good, but mouse clicks are spongy. The software for the mam4 was lightweight which was nice as well.I was set to choose the mam4, but I found 2 issues I couldn't overlook. Slow straight movements don't immediately get picked up by the mouse. I was trying to do fine movements with 1000hz polling rate and 3200dpi resolution, and was able to move the mouse up and down by a half inch without the cursor moving. It made fine movements much more difficult than any other mouse I've ever used.Additionally, the fast scroll is not an unlocking wheel like most mice. It's a slightly heavy wheel that you can flick, but with no control of speed or duration, which is only useful to get to the end of a long document, not anywhere in the middle.

Fast shipping; comfortable and sensible; really like the weight and design, wrist is relaxed, good quality and durability; I can use it at work for 8 hours.

My assessment after messing with it for 15 minutes (can't tell you anything about the longevity of it yet):Lightweight, easy to pick up. A big plus for me is the solid plastic chassis, rather than the grippy rubber a lot of mice have which tends to get gummy after a while. It's very comfortable if you have medium-large hands like me (my girlfriend tried it and it was too big for hers). The only con I could see in terms of ergonomics is that unlike a regular mouse which has the flat part of your wrist resting on the desk, this position forces the corner of you palm/wrist to poke into the table, which could get uncomfortable. It's not a problem for me because my desk it set up such that my wrist hangs off the edge instead of resting on the surface. It's my first vertical mouse and I was surprised that I didn't need to spend some time getting used to it, it feels totally normal. All the buttons are easy to reach and they are all programable except for the one that switches which device you're connected to, kind of a bummer because I only use the mouse on one device so this is a wasted button. However you can reassign the dpi switch button which gives you a total of 3 extra buttons that can be assigned to whatever keys or key combinations you want, plus a few misc functions to choose from. And of course you can also change what the normal mouse buttons 1, 2 and 3 do if you wish. The software for doing this is very lightweight and straightforward, no complaints there. The mouse is also very quiet compared to a regular one.Overall it doesn't make me feel like I'm walking with the gods or anything, but it seems like a solid good quality mouse. I picked it up on sale for $40 which feels like what it's worth, and honestly if I paid the full $70, I'd expect a little more. Unless it's on sale I'd try the logi vertical one instead. The $70 pricetag is why I'm giving it 4 stars.

This is my second tower mouse, so I'm already used to the feel. They are the most comfortable design for long term use of a computer mouse. This unit seems well made. It is light. I like the design with the gold accent. It gives it a touch of class. Very happy with it.