Wireless M570 Trackball Sculpted Shape to Provide Better Support for Your Hand

Have used it both at home and at work. Took a while to get used to initially, but it love the ergonomics of it and it is easier on my hands and fingers than a mouse is, making me much less prone to get "carpal tunnel" type syndrome or fatigue in the hands if using it alot -- Your thumb does most of the work -- not your arm or fingers... Now, I still do use a mouse on my work laptop, but have used a trackball now for better part of 10+ years on my personal desktop PC. And Logitech simply makes the best mice and trackballs in my opinion, bar none. Highly recommend for anyone who has trouble using a mouse ...

This is my favorite mouse to use. You don't have to move the mouse to different directions like another traditional mouse

My absolute favorite mouse to use, however, they did send me the wrong type of mouse several times before finally sending me the right one. It fits perfectly in my hand, is easy to plug and use with the small usb bit it comes with and is accurate as can be while moving the ball.

This was the fourth Logitech Trackball mouse I've owned and the third infrared wireless unit. I had keep separate units for laptop and desktop - home and office, and now in pre-retirement still like to have a spare. The price was a $2.00 or $3.00 under that of my local Office Max/Depot and the unit arrived ahead on schedule in original packaging and in perfect condition. My heavy use (office) unit finally broke, when the plastic tab that engages the left click mouse button could no longer lift the mouse finger clicker off the button, leading to all sorts of mayhem (button still engaged when right index finger was lifted) during use. Seeking the cause for the trouble, I disassembled the unit (lots of hidden screws) to discover an un-repairable cracked button tab acting as a spring to lift the left mouse clicker after depression. I guess after 1000's of left mouse clicks and perhaps some transport damage the plastic tab became fatigued and cracked after years of heavy use. I'm glad I had a spare and purchased this one immediately to replace the scrapped unit. The Logitech USB wireless transmitter, and associated software permits paring a single transmitter to multiple Logitech devices, e.g. wireless mouse and wireless keyboard, eliminating the need for more than a single transmitter. Battery life is excellent if you remember to slide the switch to off (red) when not in use.

I had to return this Trackball due to the left button started working intermittent and then it quit completely. The reason for the 4 star is that it was comfortable to use, it works great on a small desk or a cluttered desk, and with 2 screens made it easy to move from one screen to the other. I returned it for another one, and I do not know if the one I got was a used mouse or a new one. It looked new and there was a new battery in it. I will try another to see if it will last longer than a week. I will follow up this review with another one after I have use the new Trackball for a while.

Have gone through several over the years. Have a backup one new in the box. Use them daily and get a year or two of constant use out of them before its time for a replacement. Have to pop the roller ball out on occasion to clean the lint off the rollers. Works much better than a mouse for my purposes.

I got this to backup the same model that I have had for years. I got to because I had bursitis in my right shoulder from moving the mouse. Once I stopped using the mouse the shoulder healed. Before I got this I had learned to left-hand a mouse. But I was getting cramps in my left thumb. So, this has been the perfect solution. No shoulder movement and my right thumb never gets tired as the little ball is so easy and smooth to move. Love it! Wondering why I got a backup. The Mfg. discontinued it and I am worried the one I have will stop working some day. It’s like a belt for my suspenders.

Sometimes you may want the uber trackballs that have a gazillion buttons on the side (lol) - but sometimes you just need a simple one with a couple of buttons. I will confess that I'm a gamer - my 'gazillion buttons' reside on a Tartarus Pro under my left hand - *but* I still need a good solid trackball under my right hand - and this is it! I have purchased some of Logitech's more recently developed trackballs and they are 'okay' (and probably fabulous for some), but I've had connectivity issues with them and don't like the hoops one has to jump through in order to program the keys. As a result, I find myself coming back to this one. I hope they never stop making it. This simple "original" trackball is just hard to beat for comfort, durability and ease of use.

Bom produto e atendeu minhas expectativas! uso diariamente.