had to send them back, didnt like them at all

Not very good quality of sound

There are two big problems with these. One is that there is a loud booming sound with every footstep while running, making them useless. I've experienced this with another pair of Bluetooth headphones, but never any wired headphones. It seems to be something internal as the headphones feel quite securely placed while running and do not feel like they are coming loose. Also, my copy of these has a problem with the right speaker when it crackles and cuts out with any pressure or movement, even just moving my jaw. Also, the headphones come in the usual little mesh bag, but someone didn't test this out well; the Velcro cable tie for the included USB cable sticks to the inside of the bag. Disappointing given Anker's usual quality standards.

I'm not getting the sound quality that I've read in other reviews. Very little bass. These are my first blu tooth sound buds and maybe that's typical of Bluetooth.

To be fair, it has a good sound quality!However, it has some Cons:- using it for >1 hour, it starts hurting the cartilage of my ears- having uncomfortable noise when not playing music, (i think the problem comes from the mic)- its battery is as 70% as advertising.

Only one earbud worked... I returned them. No big deal.

it just ok

The fit is not bad as it comes with a few different ear bud sizes, the link up via bluetooth was fast and easy, but the sound is junk. I have better sound out of my $10 year buds and my $18 bluetooth head set. I love the ANKER brand for almost all things, these were new so I thought I would give them a go, but not impressed. Sending them back to get my $40.00 back.

These headphones were not for me. Didn't fit in my ears properly. I returned them and got lite version.

Okay these did not last long i just use them for school and they now wont turn on in 3 days...Im disappointed