Comfortable wearing, volume control, clear mike, USB for every computer
342677
I uses this headset mostly for: web video watching, chatting, gaming, and listening to music while I'm working. Here are the reasons that I recommend it to the potential buyers:

1. It is very comfortable in wearing, both on the ears and on the top of my head.

2. It has its own volume control. You don't need to move your mouse on-screen.

3. The microphone delivers very clear sound. You don't need to put it near your mouth to speak.

4. The USB DSP is definitely better than all my computers' built-in soundcard. It helps me save money on upgrading soundcards.
2423006
works well, voices are clear, comfortable headset.
1142561
1. Good Design - comfortable to wear

2. Easy installation - fast connect

3. I am using it with PC and radio

4. Actually around 7-8 meters you receive good connection and sound excellent

5. Hope Logitech to provide one with mic

6. Charge it after 5 hours using
2160699
I listen to music and sometimes video on my computer while I work, and it's very convenient to have a wireless headset.  These are comfortable with clear sound, and I love that I can just run my finger down the left ear pad to turn the volume down.  The charge seems to hold for a reasonable amount of time.  The only thing I wish was different is that I would like to be able to use them while re-charging.  I can plug the back-up direct wire cable in when it's out of a charge, but they won't come on while the charging cable is in use.  I have to wait until I'm done for the day to recharge them.

Oh, and I wish accidentally tapping the smart ear pad wouldn't cause my iTunes to turn itself on automatically and start playing, but I can't decide whose fault that glitch is.  I suspect that might be an Apple thing.
4926116
I bought this product in 2016 and I have been using it for my PC. I don't use it for heavy gaming; however, I do use it to teach online. The volume works and the headphones are actually very comfortable to wear. I like that I can move the mic up and down even though that doesn't really change the sound quality. My only issue with this product is that I cannot mute the mic.
2606045
I use these on my computer at the office, and have had them for 3 months now.  They are great for blocking out a noisy room.  They paired quickly and easily with a USB bluetooth adapter I had purchased.  Big easy buttons, no annoyingly bright LED lights, and comfortable to wear for extended periods.  Easy to put on and take off, (the band goes behind your neck not over your head) and they are comfortable when resting around your neck when you need to have them off your ears.  The battery life is great, as I have on many occasions set them down on my desk forgetting to turn them off, but they are still powered and working the next day.  I will likely purchase another pair for use at home.
41166
This headset is awesome!  Sounds very nice and comfortable to wear for a few hours.  I had a few initial problems, but they were all configuration issues.  After I disabled every other sound device on my computer (so the headset would  always be default) and moved from a USB 3 to USB 2 port (to fix the few seconds of cutout every half-hour or so) I have had no issues.  I blame the cut-out issue on my PC because it was an early USB3.0 motherboard.

It really blew my mind how great these sound; in games you can really get an idea of what direction sounds are coming from.  The 'vibration unit' is a bit silly but it does all a little more depth to the bass.  30 year old casual gamer.

Update on 4/30/2017:
After two years of use, this set is showing virtually no wear.  This is after playing 503 hours of grand theft auto 5, 133 hours of dirty bomb, and lots of tv shows and movies.
983411
I got this comfortable and superb enough headset with a 50% discount and it is all wonderful. Easy to install and use as it is not only PLANTRONICS but also magnificient as Ottoman Emperor King Solomon 1. Get ready to ride your horse to Mongol steps as soon as you wear this 7.1 Dolby and USB headset with your teammates^^
4951193
Very comfortable. I mean VERY. I've been wearing these for like 3 hours straight and I forgot they were even on. The cord on this thing is like 9 feet long, so you know for sure you got more than enough wiggle room. Thankfully, there is a little Velcro to bring that snake in to a less stringy length.

Great sound. Seriously. I tested this with the Omaha Beach scene in Saving Private Ryan. With the headset switched to 5.1, I began watching and thought "hmm, this is pretty good." That is, until I switched it back to stereo and realized "5.1 is not pretty good, it is amazing" The options to switch between stereo, 4.1, 5.1, and 7.1 is awesome, even though there is only one setting I'd ever use (guess). There is also a ton of options that I haven't even begun using, and many I probably never will, but I appreciate it's inclusion. The headset isn't very bassy, however. I mean, that ain't a problem for me, but I guess if you like that rumble and shake thing, maybe this isn't for you.

There is also a question about whether or not its worth it to use the Dolby Headphones mode. It takes regular 5.1 and 7.1 mode, and makes it a little bit more subtle. Well, it's actually a lot more subtle, as when you don't have DH on, Surround Sound is much more defined. I guess its supposed to resemble more of a "real surround sound" experience, but at the same time, I love hearing bullets whiz from one side to the other clearly. I leave it off, but its really up to you.

I was worried the mic would be too quiet but no one has had an issue hearing me yet.

The one thing don't like is that the volume control is like a good yard away from the headset itself, so if I need to adjust anything I need to look and reach for it.

Its the cheapest surround sound USB headset I've found, and so far, I feel as though I've picked the right product, and I know in the future when Corsair rolls out their next in line, I will probably purchase those too.
1362076
I use this an average of 1 hour  daily, primarily with Skype for Business. It is comfortable to wear and the sound quality is very good. I usually stay within 20' and the connection remains solid (it may work a longer distance, I have not tried). The mute/unmute tones are easily distinguishable. There is not an interface with Skype for Business to answer or hang up on the headset from a call/meeting, and the mute/unmute state is not reflected on the Skype microphone icon on the window. The clickable mute/unmute on the Skype window operates separately from the headset mute/unmute. The headset will last several usage hours between charges. It can be charged and used at the same time.
1739864
This headset is comfortable to wear, has good sound quality and is easy to set up.

It is important for me for a headset to be comfortable.  This is very comfortable with padding on the top of the headset as well as on both earflaps. In fact the earflaps are shaped like an ear with a rounded back and a larger flatter front. As a result these go over my ears instead of on top of them. Plus they are light enough so I barely feel them on my head.

The sound quality is good. The chat volume and game volume controls are easy reach and to use.

The instruction manual is easy to read. It is done in red and black ink and spaced nicely making it easy on the eyes.

I had no problem setting these up. The head phones come with an in-line controller, flexible microphone, RCA connection cable, communication cable, HDMI audio adapter and and MP3/Phone audio adaptor.  There are instructions for using all of these.
86238
Comfortable, easy to transport, great sound quality and as an added bonus, I don't have to turn my pc volume past 12% unless hearing becomes too mainstream and I feel the need to live out the rest of my life without the luxury of sound!
1693959
Overall I'm quite happy with this headset. I have the mono version (one speaker) so I can hear what is going on around me better when wearing them.  I have used these on many multi-hour conference calls without issue, they are very comfortable.  Your ear can of course get tired after a couple hours, but an unexpected bonus of the mono version is that you can quickly flip it around and use it with the other ear, no missing a beat, and greatly extending headset fatigue.  The sound quality is good, and the mic works well as well.  It has mute & volume +/- button on the cord which work as expected.  The cord is the flat style, which does seem to tangle a bit less, but it is a cord, so you still do have to sort it out every once in awhile.  So in summary, a nice headset, good functionality and quality materials, but it does seem a bit expensive.  Having said that, if mine died, I would buy another just like it.
1195860
An amazingly comfortable headset for extended gaming sessions. Crisp mic sound allows easy communication with team mates. I have been able to keep a multiple hour gaming session going in these and felt no pain in my ears. The two downsides is that the audio quality will not impress for listening to music, despite the CCAW voice coils and neodynium drivers, the other being that the cord is not braided and is rather short unless you use the extension provided with the headset. A minor gripe is that some of the stamped parts makes slight clanking sounds when you move your head around, but that is easily remedied with a dab of hot glue.
So on a scale from 1-5
Comfort: 5
Sound Clarity: 5
Music Performance: 3
Mic: 5
Ergonomics: 5
3543377
This is my second Logitech Premium USB headset that I bought for my niece in Europe to use it both ends with Skype! It's great looking, easy to wear for a long time, sound is perfect and who wants more!? Highly recommended!
1127875
These are everything I expected. It's unfair to compare them to the QC15's because they're lower cost, not noise canceling, and lighter. (I have both.) That being said, I have no complaints at all. Nice sound, nice volume. Controls are on the headset that allow you to control volume, pause, fast forward or rewind whatever you're watching/listening to, and these are easily controlled by touch while you're wearing them. The headset is sturdy, as you would expect from Bose. My only complaint is that it would be nice if I could get a hard case that didn't require me to remove the bluetooth unit, as yanking it off several times a day seem to be asking for bad news IMO. My ease or difficulty in connecting to computers, phones, etc have all been the fault of the computers, phones, that is, downloading the latest drivers and so on, but that's a one time deal. After that, syncing up is a breeze. The headset is easily controllable and not finicky at all. The battery has nice life. (rated for 8 hours continuous use). I've had no problem with dropouts. It gets flaky when about 50ft or so from the signal source, which is to be expected. I also like the fact that I can unplug the bluetooth receiver and plug in a signal cord, and your music source powers the headphones, unlike the QC15's, which go dead when the battery is dead. (The latest versions do anyway). In summery, I'm happy I bought them, and would do it all again if I had it to over. And that's what really counts, right?

Edit: PS, after reviewing some other reviews, I should really add that I've had NO PROBLEM connecting to both my windows 7 OS computers, my XP laptop, my Droid (jellybean) motorola razr maxx phone and my Droid (kitkat) samsung tab 8. It seems that people having problems connecting these headphones to their computers all have to go get bluetooth dongles rather than having bluetooth built into their computers/tablets, it is also apparent that some are having driver problems. That's not Boze's fault. They need to buy a computer made in the 21st century.
399892
I got these on Prime Day and they've worked great at my office.  Comfortable on my ears, even with glasses on. Sound quality is good, and mic works, though I mainly use them to listen to music while working - I can get up from my desk and move around without having to disconnect myself. I might get another pair and get a bluetooth USB for my gaming rig.