This head phones have many conectivity issues. The setup ...
581401
This head phones have many conectivity issues. The setup proseadure is a lot more cumbersome than others. People complain to me about the amount of noise they hear at my side of the conversation. They don't feel very secured compared to other bluetooth headphones that y have used.
477841
Unfortunately, despite the great reviews, they are not as good as I had hoped they would be. I'm so tired of shopping for functional affordable headphones. Sadly, my search continues. When talking on the phone, I sound far away for the other person on the line. On top to that, even if I have the phone on my lap or right in front of me, the reception is intermittent. I have to pick up the phone and hold it by my ear to receive uninterrupted reception. When listening to music, unlike a couple of other sets I've owned, if I walk away a few feet from my phone, the reception can get quite static. It also doesn't always connect automatically to my phone even though it's paired. That can also get quite annoying. Lastly, it doesn't automatically shut off after several minutes without use, like other's I've purchased.

The company did send an email to me before I received to product to make themselves available for any questions or issues. They emailed a User's guide for my product too. I will contact them as they've requested to see what they advise.
4038840
This has super serious pairing issues. Yesterday I spent 8 minutes repeatedly trying to re-pair with phone, both with NFC and directly through phone bluetooth settings. Regularly must repeat this 5-10 minute processor when someone else tries to connect to it to play their own music.

At least once paired it connects to phone pretty regularly, maybe 9 times out of 10.

Also has high pitched static/noise/whine while in use, from two sources:
-passed from vehicle power system (alternator)-- this goes away when car engine is off
-poorly implemented power supply or poorly decoupled IC-- audible even with car engine off.
4212908
The Bluetooth connection has terrible connection. Keep hearing the static and buzzing when connected. The interference would play in the background of the music play. Not sure if defected or suppose to be like that. NOT RECOMMENDED
2866663
Problems with this headset turning on and off, freezing phone, not picking up calls.  It's unsuable.  I see some others have pointed to the same problem.  Will be returning this.
3249825
sometimes it will not connect right away and I will have to fo back into my Bluetooth settings to reconnect my headset.
1463541
Way too hard to set up. I had to call to figure out that a pin needed to be inserted into the headphones to reset them in order for new device syncs
1951313
This is a very poor product.  To begin, it is very uncomfortable and I couldn't tolerate having it on for more than 20-30 mins.  Not only is this product uncomfortable, it is very poor in terms of the use.  I would get static, repeated interference, to the point that the other person couldn't hear me and I would have to switch to my handset.  Too bad I got busy and missed the time frame to return it.  Now I have a 22 dollar piece of junk sitting here.
4754135
I would like to submit a quick review for this product since it's not quite what I expected. First the pros, in terms of design the appearance looks somewhat premium, they don't feel cheap which is a good thing and mostly for the price. The headsets are also very light and comfortable to wear which is very important for me. They are also easy to pair and operate. Now for the cons, the device is not working properly with my devices at all, I tested these headsets with 2 devices iPhone and Android and both had the same problem; when I move more than 5 feets away of the cellphone the audio starts to distort with both calls and music, when I put my phone in my pocket (left or right) the same problem occur with both my devices. Also, the sound quality is not aptX as mentioned on the description, the sound clarity and bass punch are not quite there. Definitely not HD quality audio. Also, the headsets did not last 4 hours after a full battery charge when it mentioned at least 6 on the description.
1916736
Issues. It disconnects frequently . I have to unplug it and plug it again  and configure it again. Very unstable.
2497436
Battery and syncing are shoddy.  Since it pairs like a headset, getting it to play music gets a little more complicated than I intended (for someone technophobic).
1535133
Device had several issues. It connected up very easily. However, after charging and trying to power it back on, it did not sync correctly. I uninstalled the drivers and restarted my computer and re-paired the headset which worked for a few songs, then it randomly cut back out. This was during the first use. Additionally, it was tight on my head even fully extended. I returned them as I couldn't trust their reliability after that point.
3921150
This product has too many issues, starting with the interfering noises, blue tooth not linking up as promised and I was not able to use it with my iphone. Just don't buy it. It's been three weeks and I am still waiting for a return label so I can return it.
4370361
the product has problems with reception , generates annoying sound on the radio
2039078
On the plus side, the headphones looked great.  They appeared to be made of quality materials and the fit and finish was excellent.  Bluetooth pairing to my phone was easy.  Sampled some familiar music and the sound was pretty good.  Unfortunately, the bluetooth connection was very sketchy. Several times during any given song there would be a glitch or skip in the music.  This happened while my phone was within two feet of the headphones.  This happened even when I put my phone directly next to the headphones.  I regularly use two other sets of bluetooth headphones with the same phone and their connection is great.  It's a pity that the connection quality is so bad. Returning these.
624114
There is a ton of background noise and when you try to use voice activation to call contacts it "can't find" your contact which defeats the whole purpose of hands free.
2333871
Tricky to set up--lots of bugs in my case.  Included "headest" is an earbud and mic--works but very tinny and chintzy.