Not a great item to have
595853
It has some nice features but the On-off switch is in the wrong place , does not fit to ear properly and noise cancellation is a false statement. Also the call quality gets weaker after some time.
1420873
Disappointed.  Much smaller than it appears.  Not a great item,
191160
Wasn't  to pleased with these items because when I'm using them they jump of the track have to stop what I'm doing to tug with putting it back on track, many times I order and just to lazy to send it back, so it goes in my ordered not pleased keep box for what God only knows because I wouldn't give it to anybody.
1024341
Not well made and pretty much a pain to use and to clean. I guess we get what we pay for, and I will go find a good one elsewhere.
2164754
Not happy with this item at all. The battery is very poor. After a short time of use it would fizzle out within 5 minutes of being fully charged, and even if you connect it to the electricity it doesn't use the electricity directly, so you still have to wait for it to charge the battery! If I could at least use it while plugged in and bypass the battery it might be slightly more useful (though defeats the hand held mobility), but this, i don't know how to solve. I would not recommend this.

I'm sort of sad that I went for the 'less cheap' one (there were alternatives at half this price point), only to get this crappy a product.

Other issues:
Inside that circular pivot thing where all the dust goes, there is a very narrow area in which debris gets stuck, and sucking becomes much poorer.
4869888
Would not buy this item again. Doesn't meet up to my expectations. Does not do the job it was intended for
2001415
It was not as nice as I thought it would be. I did not feel it was a reasonable value and would have returned it if I had the time to replace it.
1234854
after I used it for a while in my car, it starts to fall in apart. with the price I pay, I feel it's not a so good choice to get it. I won't recommend my friends to get it
4378507
I was not that impressed with this item. I guess for the price I  expected it to be much bigger. No hard feelings. Just live asnd learn. Buy what you can hold.
817556
Poor quality and one was broken when I received it.  They can be useful in the right situation but I would not suggest them if your situation is serious.
1782728
I am not happy this item was not this much or I would have not goten it . I don't need it
644652
Not really a got to have item I thought it would charge without being connected to usb Cord.  Did not  But ok
2562197
This was not a very good item for me.  Once it was installed it did not last very long.  The cover would not stick to the phone like it was suppose to.
412568
I was not happy with this item. When it arrived it was not what I was expecting the quality is poor and I send it back and got my money back.
3223618
This is a flimsy item.  i can't imagine it cost more than $2 or $3 dollars to make and it cost me nearly $20 to purchase.  i will be giving this as a gift, (on a wish list) but I don't recommend purchasing this item.  Save your money for something else.
2948347
The low price should have clued me in: the items included in this package are generally low quality.  Since I bought it as a gift - and was almost too embarrassed to then give it - I don't know how well the individual items work.
4634683
It wasn't the best purchase I have made recently. I would look for a better option. These quality wise were not great.