Should I get a new one? I had one of the older wired red ones and that thing was smooth as butter. I've had this newer model for about a year now and it drives me crazy. It is just not as smooth as the red one. I'm wondering if I just buy a new one if it'll be more what I'm looking for. I've cleaned this thing out a hu…

I have this trackball mouse as well as the wired model with the red ball and I have the same problem you describe. I havent been able to get the M570 to track smoothly every since I got it no matter how much cleaning i did. This was annoying for any normal precision work, like placing the cursor between 2 letters. But I discovered that the red ball from the older mouse worked excellently, which suggests that the problem is not dirt but the blue ball. Also the speckled pattern on the blue ball is not as tight as the red, which i think contributes to the M570 jerky motions. So i figured that this issue is intrinsic to the M570 model (more specifically the blue ball) and I've been searching for a used red trackball for some time to replace the blue.

Does this mouse help hand pain? I have muscle waisting and pain in my hands, and I was thinking of pairing this with a Apple Magic Track pad to help m

I have this mouse and it has helped relieve the wrist and hand/arm/shoulder pain I had when using a regular mouse. However, I did have a bit of pain in my thumb at first, until I got used to using the trackball. As another commenter said, you will use your thumb a lot with this mouse. It will also take a bit to get used to using your thumb, but by the time you get the hang of it, your thumb pain will be gone too. I love it! Plus, I can pair it with my Logitech Wireless Wave Combo Mk550 With Keyboard and Laser Mouse (http://www.amazon.com/Logitech-Wireless-Combo-Mk550-Keyboard/dp/B003VAHYNC/ref=sr_1_2?ie=UTF8&qid=1431417569&sr=8-2&keywords=logitech+wireless+k350) that I bought this mouse to replace. I've been very comfy now at my computer.

How long does the battery last if you use the mouse 8 hours per day, 5 days a week at work?

My husband and I have each owned 3 of these mice. The only reason we bought new ones is because our cat knocks them off the desk, the ball falls out and it gets a tiny dent/scratch in the ball. Then the mouse doesn't glide as smoothly. Turn the mouse off when you aren't using it. Ive had the batteries last 18 months no problem. I played World of Warcraft with this mouse for 14+ hours a day for weeks and never had a tiny hiccup. Just make sure you take the ball out, take any hair or dirt that builds up on the little sensors, and check the hole in the bottom for any dirt/hair. We use these mice for at least 8 hours every day. The battery is not an inconvenience. Anyone having troubles wither got a faulty mouse, or was using bad batteries. Again, we have had 6 of these mice in the last 13 years and we have NEVER had an issue. They are easy on the wrist/arm/shoulder, they don't take any battery juice to run, and they work beautifully.

I need to use this device with a Linux system. Does this mouse support "middle-click"? (i.e. works like a 3 button mouse)?

In Ubuntu 16.4, it works exactly like a 3 button mouse is supposed to work in that distribution. All three buttons and the wheel work as expected, and even the "forward/back" buttons on the extreme left edge page backward and forward through documents or through browser pages, just as they do in windows. It's interesting because Logitec's own FAQ states unambiguously that this mouse *won't* work in Linux. That is absolutely false. In recent distribution of Linux, at least, it works great. In a way, I works better in Linux than in Windows, in the following sense: I bought one for my Linux computer at home, and another to use at work with the Windows 7 computer supplied by my employer. I plugged the receiver into my Linux computer and was fully using the mouse, literally, in 1 SECOND! It immediately came to life! On Windows 7, I plugged in the receiver and got to watch the "Found new device" dialog pop out of the tray and watch the little blue circle circling round and round the graphic that looks like a tower computer for some 10 minutes before the mouse would work! :)

Brand	Logitech
Product Dimensions	14.5 x 4.5 x 9.5 cm; 142 g
Batteries	1 D batteries required. (included)
Item model number	910-001799
Manufacturer	Logitech
Series	910-001799
Color	black
Computer Memory Type	DDR3 SDRAM
Wireless Type	2.4 GHz Radio Frequency, 802.11a/b/g/n, 802.11abg
Number of USB 2.0 Ports	1
Voltage	100 Volts
Wattage	100
Power Source	Battery Powered
Hardware Platform	Personal Computer
Operating System	Linux, Windows 7, Windows XP
Average Battery Life (in hours)	18 months
Are Batteries Included	Yes
Lithium Battery Energy Content	20 Watt Hours
Lithium Battery Packaging	Batteries packed with equipment
Lithium Battery Voltage	24 Volts
Lithium Battery Weight	100 g
Number Of Lithium Ion Cells	1
Item Weight	142 g

Logitech M570 Wireless Trackball Mouse, Dark Gray (PS4)

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