These are ok and handy. the earbuds keep falling ...
921332
These are ok and handy.  the earbuds keep falling out of their holders but i can still hear very clear whether on the phone or listening to my music on the phone.
66443
My second purchase, the first pair broke off an earbud since I was carrying it in my laptop bag. Sound quality is good, but you have to be careful while carrying it - its not very robust. No problem while running and biking.
3689907
They deliver nice sound and they were very inexpensive but I find the ear buds fall out a lot. I have to really push them into my ear canal but who wants to do that?!
4683804
These earbuds have an odd angle, and that makes them not so great for long-term wear, like a workout. However for just walking between classes they do the job pretty well. The bass is really good in these.
4281267
If the ear buds don't have these little hooks that hold them in your ears, they always fall out of my ears. These stay put, the sound quality is GOOD, the mic works, and they last. I stepped on my last pair and they broke, so I bought another.
2412045
These are pretty good, but do have a flaw. The slick plastic exterior is slippery. They routinely fall out of my ears. The sound is good. The no tangle cord is excellent. I wish they were the round earbud style of in ear earphone.
484680
There is a lot of earbud that stays out of your ear and the flat tangle-resistant wires are heavier than standard thin wires so they want to fall out more than other, smaller buds.  But they work and the mic works.
655609
I want to like these earbuds because I do fornthemmost part. But these earbuds fall out of my ears often. I find myself forcing them to stay inside my ears. To be fair though, I do use ear cleaner to clean out excess wax build up in my ears. The cleaning solution makes my ears wet but even when they're dry the ear buds still fall out after a while.
2377053
Sound is good and work great but the problem is the constant slipping off the ears as you move around.
3605863
I would not recommend.

While we get 4 pairs, the actual earbud securer is too thin for the earbud to stay in my ear and too big to stay securely on the earbud. I tried doubling up on the earbud securers but, it ended up shifting after short-time use, limited sound output and would eventually fall off in my bag.
772175
These ear buds are ok. They don't work well for exercise but are fine if you're stationary while using them.
304643
These earbuds are comfortable, sound good and do a reasonable job of reducing outside noise.  However they won't last more than a few weeks.  This is the second set I've had that has shorted out.  The problem is the strain relief.  It is too short and not rigid enough.  After a few weeks of being careful not to torque the connector, this second pair shorted out the same way the first did.  I don't abuse them.  Mostly, I just put my iPod in my shirt pocket while I'm walking my dog.
4894702
Not bad.  They sound ok. The volume is good but not exceptional.  If you are not too worried about sound quality these work well.

Pros:
inexpensive and reliable
uses USB

Cons:
has a small cord, limits where they can be positioned.

My son took these outside and forgot/neglected to bring them inside. They stayed outside for a week and were rained on. I did not expect them to work.  They did.  It's been 3 months and they still work.
3338021
I've had these for about 3 years and have been generally happy with them. They would drop out a lot during phone calls, or add static noise to the call. They seem to have improved with age, but I have no idea why!

From a music or audio perspective they're pretty good. I use them mostly to listen to audio books, listen to audio or video training materials on my iPhone 6s or MacBook Pro.

The biggest complaint I have is the earbuds. The shape is outdated -- they're like big mushrooms you shove into your ears. They're still functional, but I actually prefer the shape of Apples wired earbuds (so I may invest in some AirPods in the near future). These are just not that comfortable, and it always feels like they're going to fall out. Fortunately it has ear stabilizers, a little rubber loop on each earbud that sits inside your ear shape to hold them in place.

I purchased the earbuds with the charger case, which contains an additional battery and also holds the earbuds for storage/transport. The charger case ensures at least a few extra hours of listening time when on the road. In the car, you can always charge the case using a standard USB cable.<a data-hook="product-link-linked" class="a-link-normal" href="/Plantronics-BackBeat-Go-2-Wireless-Hi-Fi-Earbud-Headphones-with-Charging-Case-Compatible-with-iPhone-and-other-Smart-Devices-Black/dp/B00DIOAM4Y/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Plantronics BackBeat Go 2 Wireless Hi-Fi Earbud Headphones with Charging Case - Compatible with iPhone and other Smart Devices - Black</a>
2402580
I've had the earbuds for several months, and I use them in the gym 4 times a week. They are a decent product for the price, but there are much better headphones available such as the Jaybird.

Pros:
Good battery life, I charge them once a week.
- Lightweight
- Good sound quality

Cons:
- Controls are difficult to use. (No play/pause, track skip requires holding a volume button for a few seconds, etc.)
- Short range. If I step more than 15 ft away from my phone audio will begin to drop out.
- The position of the controls and/or flexibility of the cord causes the left (non-control side) earbud to be pulled out of my ear sometimes.
- The ear tips will sometimes fall off if I put them in a pocket of my gym bag.
- The ear tips don't stay on the headphones when being worn. When removing the headphone it's a 50/50 chance of leaving the tip in your ear. I've tried washing the tips and wiping down the earbuds with alcohol to remove any sweat or skin oils that may be present which has helped slightly. There is no positive engagement to prevent the tips from falling off in your ear.
4724684
These were good while they lasted. That they fold was great, and helped them last in my bag. Although I take care of my things and don't do much yanking, they are in and out of my pocket and my bag all the time, which does take a toll. If you don't want to use earbuds, these are just as convenient.
4557166
I got these earbuds on sale in a department store. Initially, they worked really well: good sound with acceptable bass, good fit, easy to use.  However, a couple of weeks ago, the earbuds would all of a sudden shut off by themselves while using them. After turning them back on for the 4th or 5th time, they would remain on, but the battery seems to be draining a lot quicker. Not sure how much longer they will last