Thanks for the review. There is a feature which is not in the bullet points but it does appear in the product FAQ:
How can I skip tracks?
Long press (1s+) Volume + to skip forward. Long press (1s+) Volume - to skip backward.
Can you confirm this? Thanks in advance.
Hi @bobbleheaderman , can’t say if it’s the same for Android (as I don’t have access to a device but maybe someone else can confirm) but on iOS devices you can gauge a rough idea of the charge level from the BT indicator in the upper right corner (see attached). As mentioned this is not completely ideal and perhaps a universal app from Anker to use across their BT device range would be good to give a more accurate insight into remaining battery charge (percent / time etc).
Usage time will also be dependent on volume level (updated my review to mention this as I though I already had, oops)
Interesting, I was actually paired with my laptop so I guess that’s why I was curious. I downloaded an app on my android to keep track but it is kind of lame but for some could be useful. It is based off timers. Set how long the battery should last on your device and the timers count whenever that device is connected so it does not detect deferential of volumes effects. One thing I found on these ear buds is that I have to keep the volume at max on the buds or when I disconnect them the devices volume will be very high.
I find with my android device the music needs to be playing and not paused and when I long press volume up on the buds, I will skip one song forward, repeat to skip another song forward. Going back is tricky as when you long press volume down it goes to the beginning of the song you are listening to then you need to be quick(first second of the song)press and hold again and it will go to previous track. If it worked while paused this would be much easier but hey it’s a big step forward from when I was a kid when on an 8 track player you had to listen to about 20 minutes of music just to get back to the beginning of a song 
To be honest it’s one thing I didn’t really check as I normally prefer to use my phone for changing tracks ( if on treadmill etc). Had quick mess tonight when I got home and can confirm that the FAQ is correct.
Just make sure to give a sharp, long press of the buttons until the track has changed to either the next or previous track played. Using gradual pressure, especially on the volume down, has a tendency to activate the volume rather than skip track feature.
Further to my last and I can’t believe I’ve never really bothered to look this up before making me feel both 
and 
but you can actually view the battery percent of bluetooth devices in the iOS notification centre (knew it was possible for the internal battery but not BT also).
Following link gives a run thru for iOS 9 but iOS10 is not that different;
great to know that. thank you very much, ndalby. 
Thanks for the great review! Couple questions:
nice review 
and good pictures! 
Didn’t use the call feature extensively but when tested I didn’t get any ‘speak up I can’t hear your comments’. As for muting, you can put a call on hold allowing you to answer a waiting call by pressing play/pause, I would guess if you don’t have a waiting call it would act as a mute feature.
Will give it a test this evening and let you know.
Thanks, seemed fair doing a review on these as I didn’t warm to the standard Sport versions at all…in fact family and friends didn’t either…
Im new to bluetooth earpieces and wanted to get either the soundbuds sports or slim because my headphone jack is spoilt. What would you say is the few differences between this 2 models and which one should i buy?
Personally myself I would go for the slim model as they are lighter, have very decent battery and are more streamlined when worn. The sport model (not the NB10’s) just didn’t sit right for my ears (and a few relatives too), plus they do stick out a tad.
Thank you for the opinion! I decided to get the slim model as suggested and ordered it on amazon. Will see how it turns out 
I will also add that the downloadable PDF of the manual is confusing and wrong. It shows that one can advance to the next track by either a single long press on the play button OR a long press on the volume + button. I can confirm that ONLY the long press on the (+) volume button works for this. Don’t throw away your user manual, as it shows the correct controls!
Does anyone have an accurate way of reading the battery level? These are great but become suddenly worthless without notice - this is a huge flaw and it amazes me that it was overlooked.
I love Anker, I hope there is a way to read the battery available and I’m just missing it! Like holding down the button for x seconds or a companion app. Android does not seem to read it and the 3rd party App BattOn is inaccurate.
I agree i get a couple of minutes warning a bleep then they shutdown, no notice. I’ve just spent 3 days moving and used my Slim during flights and to talk with Uber driver in noisy airport. The Slim do a good noise isolation job, so good for flights. I carry them plus some corded earbuds so I have another earbud while charging.
What I do is just plug in the Slim when not using, because I don’t know their charge, e.g. last evening I had time in airport, then flight, so I used the buds in the airport for about 3 hours, then during the 15mins or so time of walking to gate and boarding, I plugged in the Slim into the Powercore+ mini and got some charge, then used the buds for about 3 hours then during landing I plugged them back into power for the 20 min or so of the landing period then used the buds again through the Uber process. i.e. took opportunistic short times to recharge. If I had not taken those two combined 35mins or so of recharging, I might not have lasted the total of 6+ hours of use.
If I knew the charge level I might not need to do such preventing proactive top-up charging.
The only accurate (used loosely as you are talking countdown in 10% chunks) way I am aware of is on iOS devices. From a quick read about Android on Google (been two years since I last used) many suggest it is due to security lockdown on the stock Android. Not certain if this is still the case, the article is from 2015;
Also here
Hi ndalby, how would you say the sound quality compares between these ones and the non-NB10 SoundBud Sports?
These ones IIRC:
I noticed in your review that you said that you’ve used that model before, so I was wondering if you noticed any differences in audio quality between the two.
Hi @Martin_B1 , I would say the sound quality on the Slim model was best in the limited time that I used the non-NB10. I say limited because I found the non-NB10’s to be uncomfortable when in the ear (so did a couple of family members), so audio quality testing did suffer between the two models.
Some have found the non-NB10’s to be good, it’s more a case of personal preference and your ear type of course 
