I got one for my brother, and myself. I am totally into the JayBird X2. They don't fall out of my ears and don't lose connection with my cell phone, even when I'm pounding a run on the treadmill. The sound quality is amazing. Easy to use, with only three buttons to operate the headphones. Answering incoming calls is a breeze. People I talk to have no clue I'm on a Bluetooth device, I can whisper and they can still hear me clearly. PLUS, one full charge lasts days, with me. Some downfalls are; can be difficult to clean the ear inserts, initial set up is time consuming because you have to watch instructional videos on JayBird's website. They come with tiny plastic loop clips to shorten the wire for a custom fit, but they have hard rough edges that irritate the skin. So, I tie a small knot. Lastly, the wire is not glossy smooth so it sticks to the skin on the neck, especially when sweaty, and can tug the earphones causing ear soreness.

I am a power-lifter and had trouble with many ear buds breaking while performing lifts and these earbuds came to my rescue. I highly recommend them for the range and the foam ear buds buds. The quality is really good for wireless earbuds of this size.

It was a toss up between these jay birds and the beats. Saw all the bad reviews for the beats (and I don't like the over the ear buds) am satisfied with the product, however, I got white and the heat from charging the buds has burnt the plastic leaving a dull grey color that cannot be removed. Go for black

These wireless in ear headphones are great. The sound is excellent and they stay in your ear. You can actually go pretty far away from the device. I workout in a gym and they do a good job of masking gym noises. I wouldn't wear them outside. The website says they can remember 8 devices and I have 2. The website doesn't say how to get them to to switch from one to another. I do it by turning off the one device, then going to settings on my second device, (my devices are an iPad and an iPod touch), Bluetooth, then tapping where it says Jaybird X2 and then it switches. The only problem I have is that I have problems with the fit of the ear fins. I have to wear them tilted so the fin is facing up with the end that the cord comes out facing forward instead of down. I got the idea of wearing them like this from Jaybirds website. On Jaybirds website one of the video advertisement things show a man wearing them like this, with the end of the headphone where the cord comes out of the part that goes in your ear facing forward instead of down and that is the only way I can fit them in my ear at all. https://player.vimeo.com/video/135973371. The headphones come with 3 sizes, I have the small on of course, but I wish they came in extra small too. The headphones comes with S M and L tips-comply and silicone. I love the comply ones. Funny thing is I have always worn size large tips but with these I wear small. The comply ones are also the best tips I have used. You roll them between your fingers to compress them a little, put them in your ear and hold it there with you finger for 15-30 seconds. They then expand to their original size. So they are a passive noise block even without music. I found these headphones pretty comfortable and they did not come out. The sound was just as good or better then my wired headphones, which are Sony's and were $150.00 to give you an idea of quality of my wired headphones.

The Jaybird X2 are good headphones. The sound is great. Good highs and good bass. The battery life I get is 6-1/2 to 7 hours. The stated battery life is 8 hours. I like the different selections of ear tips and ear fins that come with the headphones. You can mix and match them to get the best fit. I particularly like the Comply Premium Sport Foam Ear Tips. They hold well in my ears (with the ear fins). I run with them and they don't fall out of my ears. I like the cord management clips which holds the cord securely close to my head. I don't feel the cord flopping around when I run. What keeps these headphones from being great is that it sometimes loses connection with my phone. I don't know if it is the fault of the headphones or my phone. I am leaning towards the fault of the headphones. I have bluetooth speakers (Mini Jambox) that I use with the phone and it hasn't lost connection with the phone. I still would recommend these headphones.