What an amazing set of earbuds, these are definitely an upgrade to the original Galaxy Buds (1st Gen), and those were amazing sounding headphones on their own right too. But these pro versions, wow, they blow those out of the water....Now at first I wasn't really able to notice the quality of the audio, I felt they were about the same as my original buds, boy was I wrong, not only these provide superior audio quality, these buds can literally pickup sounds that I wasn't able to hear before in my older Galaxy Buds, instruments that I didn't know that were there....a perfect example was Dream Theater - Octavarium....try listening to that song with these buds, the first 3 minutes will leave you in a trans-like state, orchestral basically, the sound is rich and just beautiful....ANC works pretty well imo, it blocks out sound very effectively and you have the choice of two settings, low or high. I usually keep mine at high sense I work as a crossing guard, and I have to be outside several hours at a time listening to cars roaring past me, ANC takes care of that problem it makes a world of difference, I can barely hear any cars passing by me with ANC activated, all I hear is the music....As for voice activated, its kind of a hit and miss for me, it activates when it detects or hears your voice and lowers down the volume of your music as well as automatically activating ambient sound so you can hear the other person you are speaking with, what I find odd though is it doesn't seem to activate when that person speaks to you first or asks you a question, literally you have to be the one to speak first in order for it to activate.....it can also be very interruptible at times, don't start singing along with any of your tunes because Voice Activated will kick in. EVERY. TIME. WITHOUT FAIL....if you are going to start a conversation you are still better off just removing your left or your right ear bud just to have a normal conversation with someone and just leave voice detect off....Ambient sound works very well and you have the choice of 4 settings from low to very high, I would suggest you leave it at high max, trust me you don't need it any higher than that ambient sounds works very well and it will pick up everything around you, if you work at an office ambient sound would be a very important feature for you imo....Very solid build quality, not too big of a fan of the Matt finish though (can be slippery, take caution), but if you hate fingerprints no worries you wont see any of them on these puppies, for such a small case and well thick enough buds, they are surprisingly heavy, it's understandable though, there is so much tech packed in such a small form factor it's no wonder they are slightly heavy, I think it has to do with the magnets, the magnets on these are a huge step up compared to the past buds, very strong your buds will not fall off the case that easy you have to deliberately shake them VERY HARD in order to send them flying....As for the buds themselves well, they are pretty comfortable, somewhat, idk maybe I'm just going crazy but these are not exactly perfect fit I feel like the first gen buds had the right fit for me, these overtime start to hurt my ears a little bit, never had this problem with the older buds so idk guess it has to do with my ears, I think I just need bigger rubber tips and the largest ones that it came with are just not large enough to provide a better seal, why can't I use my older tips from my first gen buds? or even other tips that are out there? I just don't understand why Samsung didn't make the tips universal on these buds, these tips have a weird proprietary, idk, is connection the right word? anyways, the tips that it came with are solely and only for these buds so do not lose em, I cant find any replacements for these, eBay has some, but they are those foam ones and I don't like the foam ones...way to pull an Apple Samsung....why on earth was that a good idea? just make them universal so I can easily replace these things whenever I want...anyways moving along (sorry that was just a gripe I had)Controls seem pretty straight forward, if you are coming from the original buds like me you will become instantly familiar with them....tap once pause, tap twice skip track, tap three times previous track....you get the idea....(I only had these buds for like two days so sadly I haven't been able to test call quality with these, mainly I have just been using them for music, as intended)In conclusion, there is alot more to these buds I can go on about but in all honesty this will turn into a very long review so I'm just gonna go straight to the point...ahem....BUY THESE....even if you have to use a credit card just, just buy them they are that good and worth every penny....not even the Air-pods Pro can step up with these buds not to mention 50 dollars cheaper and much more up to date technology that's being offered to you, in other words more bang for your buck, you can't go wrong with these and if you are an audiophile trust me, you will want these.....