Fits great, stays in even when running, jumping, bouldering (climbing), burpees, you name it. Every once in a while when Im really sweaty, theyll slip out but I just clean them/dry my sweat and continue on. The sound is pretty darn good. The controls on the earpiece are super easy to use. No sound quality issues and they always connect to my phone quickly. Owned them for about two yrs now and theyre doing GREAT! Update 3/2019: I've owned the same pair for 4 years now and no issues at all. Used both samsung and iphone with it. Great quality sound for the price! They have never cut out on me, never malfunctioned and fit great. I always worry about losing the size small ear pieces because they come off the headphones easily but Ive managed to keep track of them. GREAT HEADPHONES!!!

Bought these a year or two ago and have been using them ever since. Great headphones. Easy to connect to the iPhone. Stay in the ears VERY well. Love them. The reason I'm writing a review now is one of the little rubber ear tips fell off and I lost it. I didn't hold on to the extras that came with the original box so I contacted Anker and they were able to send me extra tips for free. Also, the fact that I was able to just email them and get a response within 24 hours is such a great experience. So happy to actually get customer service these days. GREAT company. Usually I always check to see if Anker makes a product before I buy because they are always quality and inexpensive but now seeing how great their customer service is I'll go with them even if the price is a little higher.

I've been using my SoundBuds Sport NB10 headphones for five months. I made the switch from SoundBuds Curve headphones because I wanted a pair without the dangling control/battery setup to make running more comfortable. In my time of use, I've been very pleased with these, providing clear audio and easy pairing on my phone/tablet/laptop. They also fit comfortably under my bicycle and snowboard helmets. Battery life is just fine, given the limited space to place one. I can make it through three days worth of gym sessions before needing to recharge, and headphone battery life is displayed on the connected device so you'll know when it's time. My only dislikes of this product are the unavailability to skip backwards with songs, and the beep tone that plays whenever volume approaches/reaches max limit. Otherwise, the headphones are great, I haven't owned a better bluetooth pair at this price point. They've comfortable through extended wear and very low profile. Audio playback is good quality and there's no delay between audio and video, unlike older bluetooth versions.

These are pretty good for the average user. The band is easy enough to adjust which is especially required for heavy workouts and/or cardio. The band can sometimes get in the way in the back of your head when you lie down to attempt benchpresses -- my only issue thus far for workouts! Battery life is pretty solid, easy to pair, have only dropped connection maybe twice in 6 months of use. I'm somewhat of an audio fan (hesitant to call myself an audiophile as I'm not hardcore anymore) so I am upgrading to try the high end Anker Zolo Liberty+ so I can go for a true wireless experience. However, these are a great buy at a great price!

For the price and bluetooth connectivity, this product is GREAT!!! The sound quality is awesome for wireless in ear buds and the fact that the bluetooth works darn near perfectly. Running, I have gotten no intermittent signal between my devices and headset. Even behind walls in my home, there is no signal degradation within the headsets' range. What's even better is Anker's customer service. My headset had an earbud that started going out after about 3 or 4 months and after describing the situation, they sent me a replacement set with no cost against me. I believe their warranty is for a year from purchase.

This is my second pair of these earphones. The first pair lasted close to 4 years. I used them 4-5 day's a week, on average, in probably some of the grossest conditions while running a poultry farm. Sweat, dirt, dust, and even worse than dirt, was no match for these puppies. The battery is great holds up well even after years of use. The only thing that I found that be could be considered bad is the charging port cover rubber degrades over time and that makes it a lil difficult to remove after a couple years.

***This is an update to my previous 2 star review. Anker contacted me and sent out a new set of headphones within 48 hours. They arrived today and sound incredible. Great customer service!*** This is my second pair of these. My first set were great, I only decided to replace them because the charging part was starting to corrode from sweat seeping in. Unfortunately the second pair sound horrible. Volume is always very low, Bass is non existent. I have even loaded both pairs into my phone and compared them, there is a very large and noticeable difference.

I love it. This is my second purchase of the same product since I lost the first. Love the feel when using it. Sound quality is acceptable. It doesn't block from the environment during your run since you still can hear everything outside which very important for your safety. It sits perfectly during running and cycling. The adjustable strap makes it better.

These things are amazing! I got them for Christmas 2016 and they are still my go to headphones. They have been through thick and thin with me and weathered it all like a pro. Hurricane Harvey. They were with me as I trudged through the rain a winds. Still working. My dad's ankle biter ran off with them. Other than a couple of teeth marks they still doing great. My daughter encased them in playdough. No problem! These headphones are immortal! Unless you don't charge them of course. Seriously if you want good headphones look no farther.

Super happy with this purchase. Way low on the price point compared to other wireless earbuds, but way high on satisfaction, for me. Fit is great, comfort is great. I've had uncomfortable poor fitting wired earbuds too many times to mention. Sound is all I need (I'm a podcast listener much more than a music listener). Wear these for walking. So much better than the wired earbuds I previously had, and no dangling cords. Can even leave the iPhone in my bag or pocket and lose nothing in the sound. They're good looking too. If I could give a 4.8, I would... only because the "startup" experience was not so great. Illustrations in the manual were hard to see. I went on line to find a youtube showing me how to access the charging connection and see the buttons better. Once that figured out, really really happy. Did I say I like these things??