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A laser is used to guide the movement of the mouse.There are different products used for the mouse, but laser is more precise.
By R. Holmes on May 21, 2014
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I've never had problems with these functionally speaking. I've been using my original keyboard and mouse that i purchased 4 or 5 years ago I think. I've got 3 of these sets; one on my Mac, one on my work pc at home, and a third at my office. I've never had any connection problems with any of them, except when the ba… see more I've never had problems with these functionally speaking. I've been using my original keyboard and mouse that i purchased 4 or 5 years ago I think. I've got 3 of these sets; one on my Mac, one on my work pc at home, and a third at my office. I've never had any connection problems with any of them, except when the batteries start to die. when that happens, the battery light will flash on the keyboard and you'll lose characters as you type. The mouse will suddenly stop working, but it's fine as soon as you replace the batteries. Not sure if there's any notification of low batteries, on the mouse but there's no lights on top that i've noticed.
The only issues i have with these keyboards is that Logitech had to have changed the material they use for the keys. The keys on the newer keyboards start to wear off after 4 or 5 months. for me, it's always the A, N, L and S keys first. the first keyboard i got a few years back is fine. the good thing is that if you keep your receipt with them or register them, logitech will replace it for free. you have to take some pictures of the keys and a code they give you and send it in, but they will give you a new one. they advised that they don't have key replacements, so you're basically throwing out a good keyboard. i'm apparently too anal to deal with the faded letters...
but I don't see myself swapping to any other keyboards/mice anytime soon.
hope that helps :-) see less

By Paul Klepacz on January 15, 2015
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Yup, i use it on my custome desktop running win7. As long as you have a usb port
By Carolyn E Kardach on February 11, 2014
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It "should" work. As long as the M570's receiver has the orange star symbol (which indicates it's a "unifying" model), you should have no problem pairing this keyboard to it.
By Rae on January 2, 2015
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Honey, this is wireless... no cord.
By Patricia M. Palm on December 2, 2013
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I know this post is old, but just in case someone else stumbles on it looking for a wireless keyboard with a caps lock / num lock / scroll lock indicator, check out the Logitech MK710 keyboard/mouse combo. It has an LCD screen at the top of the keyboard. So far its been in operation for 7 months with the same battery… see more I know this post is old, but just in case someone else stumbles on it looking for a wireless keyboard with a caps lock / num lock / scroll lock indicator, check out the Logitech MK710 keyboard/mouse combo. It has an LCD screen at the top of the keyboard. So far its been in operation for 7 months with the same battery, but the advertisement states 3 years on one battery. The receiver is the tiny micro usb too.
Here's a link.
http://www.logitech.com/en-us/product/wireless-desktop-mk710?crid=27 see less

By E.P.A.D. on March 20, 2013
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Yes. Lets just say the disk with the driver that comes with it is for W7 it's fine because when you activate it your computer is going to search for the most updated driver on line. Hope that helps!
By Farmer on December 27, 2012
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Sort of. Silver painted buttons don't work except for power off. The black music volume/prev/next controls at the top do work.
By Bud on November 21, 2013
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It does but it's very difficult to get it to work with Linux and a lot of people have had troubles with it working with Linux. The devices have to be paired on a windows computer with the wireless adapter, and then the adapter will be usable in Linux machines.
By Dorky Girl on March 31, 2015
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The goal of both laser mice and optical mice is to provide a way to transform the motion of the user's hand into digital signals that the computer can use. The main difference between laser and optical mice is the type of light that is used to track movement on the computer screen. While a standard optical mouse uses a… see more The goal of both laser mice and optical mice is to provide a way to transform the motion of the user's hand into digital signals that the computer can use. The main difference between laser and optical mice is the type of light that is used to track movement on the computer screen. While a standard optical mouse uses an LED light, a laser mouse contains a small laser that is used to monitor the movements of the mouse and represent them on the screen. For this reason, a laser mouse is typically more expensive. see less
By Srs on August 9, 2014