DO NOT BUY FROM LOGITECH!
350693
I have bought several items including this one and the hardware itself is decent but the customer support and warranty policies this company has are abysmal! I would recommend not purchasing anything from
2509081
I ordered this about a year ago and this keyboard was awesome, the space bar broke and I sent it back to Logitech to get it replaced and after dealing with back and forth emails of horrible customer service they sent me the wrong key board twice. I wanted the K320 and they send me MK320 twice after 5 emails back and forth again of someone who clearly doesn't understand English they told me they no longer make the K320 so If you're thinking about ordering it don't you won't get the item shown in photo. I hope none of you have to deal with Logitech customer service it will turn you gray!
2179788
This product is terrible.  Don't buy it.  I bought it 13 months ago and this week I couldn't get it to type.  6 keys started sticking, meaning they didn't come up on the screen, so it is useless.  It's ridiculous that the shelf life is so short, for an $80.00 outlay.  Logitech, you have lost me.
4621603
Mouse is comfortable, sensitive, and comes with a nice selection of weights.

Unfortunately, mine broke down after about a year's use, and began to register single clicks as double clicks. I was studying abroad when this happened, and the Logitech rep insisted that I had to mail it back to the US to get it repaired under warranty. This is awful! If you happen to be living for any period of time in someplace faraway (e.g.: NZ) please DO NOT buy this product on Amazon.
1283199
I bought a Logitech mouse from this seller.  In a daze and moving quickly through my day, I didn't realize I was buying a "mouse" from South Korea.  Really???  Why didn't I just hop in the car a drive to the store.  That's my fault.

After a three to four week delivery, for a mouse, it arrived this past Monday.  The packaging was dirty, nasty, poked with holes, slightly ripped, and overall I was suspect on it's authenticity.  Here's where the fun begins, as if we weren't having fun already.  Trying to return the item has been a nightmare.  The mouse cost about $60.  The seller makes us pay for the return, that cost me $18.60.  The frustrating part here, is they are horrible with communication responses and ultimately give you a hard time if you want to return anything.  NEVER AGAIN WILL I BUY FROM A THIRD PARTY SELLER ON AMAZON!!!!!!!!!!!!!!!!!!!

Seller hassles you if you make a negative review - in the United States that is called harassment and is a crime.

Buy from Amazon LLC...if you want a smooth transaction from start to finish.

PS - The positive reviews on here are SUSPECT!
2544802
it sucks it won't even let me update the drivers and the support site is useless unable to finger a solution
logitech has ruined my trust
2934428
What a horrible way to manage a product. Logitech won't support it any longer so they are planning to issue a firmware update to brick the device on Mar, 2018.  Shame...
437178
Keyboard was working great on the first day, second, did not work, NO on/off light, changed batteries, connected to another laptop, changed USB ports, spoke to logitech, with respect, they said Amazon is responsible for repair/replacement,  Now i am in UK, i can return the item to US Amazon, but replacement cannot be delivered to UK address. So, finally i have decided that my time with Logitech product has been wasted
4915642
This is a piece of crap. Although there are many high ratings I think their quality control is bad. The mouse works fine, kbd is crap. I tried several of those, I ahve 3 at home now, none of then work well. They work okay for a some time then get very glitchy and keep getting stuck. Once in a while they will work again, but again gets very intermittent. Please don't buy, unless you want to go insane with badly working kbd.

Logitech, if you think you have a better product, please contact me. I have 3 kbd sitting all about 1 year old, one just 2 months old, that I can ship back to you.
1021501
I bought this mouse because it has been seen in lots of competitive plays.
It seems most of euro pro league of legend players are using this mouse.

Nice design and feeling, identical to the Microsoft legendary intellimouse, but the hardware quality is really bad.
The 1st one broken after 1 month.
The LED indicator light flashing and Windows devise manager cannot recognize the hardware.
Try to refresh the firmware, but the software stopped loading at about 20%.
I have no choice but only replace a new one.

And then, the 2nd one stop working again!
I try to plug in my Logitech G400 on the same laptop same USB slot.
The G400 is working perfectly, and I have been use this one for more than 2 years which no problem at all.

I also got a Steelseries 6GV2 keyboard. I have to say the keyboard is perfect!
But I will never ever purchase Steelseries mouse again!
Software has no up date for nearly half year, bad support from their official website, and very shot lifetime.
If you think about sensei, don't try this one. This trim down version is serious bad quality.
1545879
As reported by many reviewers, this model fails after a short while and will not power on.
I purchased one and it failed and had to be replaced at additional cost to me because I am out of the U.S and Logitech couldn't give me a valid return label.
Then when I get the replacement the same thing happens after very limited use.
I do NOT want to pay extra for another defective product.
Now customer support tells me they cant refund me or give me a trade-in of equal value.

"We are very sorry that the replacement device that you received was defective. We understand your disappointment and appreciate the inconvenience this must have caused you however, we cannot grant your request a policy that must to be followed. "
They knowingly ship defective products and act like they are not at fault.
I might as well let them keep it.
Why pay again for more junk?
1674129
Killed by Logitech auto upgrade just after 90 day warranty. A few days after the 90 day warranty expired, there was a message on the screen that said an update was installed. From that point on, it hasn't worked. Apparently cant get support without paying for it, even though their own update process killed it. A bunch of money wasted on a product that doesn't work after only about 4 months. Wrote this review before but Amazon never posted it, so trying again. I liked the product until Logitech sent the automatic update.
439075
Bought one locally to try and like most previous logitech mice I have had(and won't game without) the left mouse button starts to mechanically stick after only 3 weeks of use! The response is amazing don't get me wrong and I love the MX series but Logitech's quality has hit rock bottom with this mouse. There is a reason there's a $30 rebate, cmon people.
2572806
I purchased this unit because of Logitech's reputation of creating great hardware and standing behind their products.  Boy was I sorely mistaken.  This controller has a problem that causes it to switch modes randomly during game play.  The effect is that the controller starts spewing commands to the game causing the game to go haywire.

What makes this even worse, is that I contacted Logitech support and it appears that they are aware of this defect because they immediately said that they would replace the unit.  However, it would be 2 - 3 weeks before they would have any of these units in stock.

If you are in the market for a PC based game controller, I would recommend that you look else where.

UPDATE:  Logitech took a while but finally made it right.  They sent a new controller and it fixed the problem.  The new controller has been working flawlessly.
3021206
I received these speakers for my 65" inch TV to give the sound a little oomph. They arrived and I set it up. It did not work. I called Logitech to make sure it was it was installed correctly  it just doesn't work. I called Amazon and they informed me it cannot be returned because they are considered HAZMAT because of the magnets but they will send me one for free overnight no hassle. Throw the other away. Got the new one as promised and it didn't work either. Logitech is impossible to deal with. No one understands anything and they will not give you to a supervisor. Now I am stuck with 2 units that do not work and a promise from Logitech they will send me an email with return instructions and then they will send me another replacement. Why would I want that after all of this? Amazon is great. Logitech is awful and obviously has an awful product. DO NOT WASTE YOUR TIME.
4069961
When I received my product from the postman about 5 minutes ago, I immediately noticed that it was used; to the point that a dark fingerprint was visible on the left mouse button.  This is actually very hard to do considering the dark silver color of the mouse buttons.

I quickly reviewed the comments section of the order slip that came with the product, and it said, "BRAND NEW, FACTORY SEALED.  YOUR SATISFACTION IS GUARANTEED!"  Unless Logitech 'Factory Seals' their products with plastic baggies, then I think that Buy Direct Corp just lied to me.  And I guess it doesn't help that they failed on their guarantee of my satisfaction either.

So 0/3, and they even used CAPS LOCK.

I called them up to get a refund, and they answered right away and after some haggling, they promised to email me a packing slip.  They can't use caps lock on the phone, so maybe they are telling the truth.

Conclusion: I will never buy from this company again, and I recommend you do the same (unless you like paying shipping for products you didn't order).
4729167
DO NOT PURCHASE THIS PRODUCT!!!  It is extremely cheap for a reason, it doesn't work.  It constantly disconnects and at least once a week I had to reset it.  I spent a little extra for a logitech and it works like a champ.  In addition, voiced my displeasure with Microsoft and there customer service never even got back to me.  Terrible