UPDATE AFTER 3 WEEKS WITH UPGRADED REPLACEMENT: (2 STARS)After just 3 weeks of use, my wife complained that the 'Upgraded' replacement left earbud had failed again. After much troubleshooting, what I found was that the buds worked fine as far as battery and functionality, but the left bud was in a constant command mode of "Volume down"!Just using the right bud, with the in the charging case, all was good. However, when the left bud was BT connected, it continuously forced the volume on her phone to go down to zero. Increase the volume on the phone and as soon as you left it, the volume would increment down to nothing.Tribit support was as responsive as always, but this time offered a full refund..UPDATE AFTER 9 MONTHS: (3 STARS)I bought these in July 2021. Since that time I have bought several other earbuds to compare and am currently loving the exquisite Technics EAH-AZ60.I ended up giving the Flybuds C1 to my wife, rather than buying her another pair, as she wanted me to do. She loves them and uses them every day at work. Unfortunately, a charging contact in the left bud fell out in October 2021. My wife found out when it wouldn't charge.Without any hassle, Tribit quickly replaced the set within a few days, requiring just a photo of the printed details in the case and the failed charging contact.My wife has been using these replacement earbuds every day since. However, in April 2022, the left bud of the replacement set also lost a charging contact. Tribit stepped up to the plate once more and are sending out their now-updated version of the Flybuds C1. According to them..."The updated version of the Bluetooth connection signal is more stable, so the call quality is better and the earbuds' own charging pin structure has been improved to reduce the problem of charging failure."The upgraded version was released a week after I received the first replacement set, so, I never got those. Hopefully, Tribit has fully addressed this early design issue. We will see!.Can't complain when Tribit customer support is so awesome! Fast, responsive, courteous, and truly customer centric!.I see that the originals are still available at $60, (not sure why), but I can't recommend you buy those now that an improved version is available ($75). I've downgraded my rating for these to 3 Stars, but tentatively will give back 5 Stars to the upgraded versionUPDATE AFTER 2 WEEKS:I've been using these every day, either outside while gardening or in the late evening, listening to music or TV so as not to disturb the sleepers. I'm still loving these Tribits.I tried phone calls and my wife's voice was clear, even with her head right up against a window fan, due to the active noise canceling call system. The fan noise was non-existent. However, next to an AC window unit, the less monotone metallic rattling was noticeable but did not affect the call quality/clarity.I did find, when outside and moving around pulling weeds, the left bud would shift and lose a little bass. The right was fine. I played around with the supplied tips and I was using the small ones, thinking I needed to insert the tips deeper into the ear canal. Turned out I needed the mediums. They seal better and stay in place against the ear canal entrance as the larger tip is held by the outer ear shape. These actually are even more comfortable now and I've had minimal shifting issues in the garden. The passive noise canceling works well and there's no annoying hiss like you can get with active noise canceling during quiet playback.I listened to some classical music last evening and, boy, was that a joy. Best clarity and reproduction I've ever had from earbuds.The TVs sound is equally impressive with a good balance of all frequencies. I find myself looking around as a noise to the far left or right on the TV show sounds like something in my room!I'm interested to see if these are truly the best out there and have a set of Soundpeats H1's coming to compare. H1's apparently have an even punchier bass and similar mids highs and clarity. They are not a stem type and some say, a little on the large size. I'll be adding another update after trying them against the Tribits.UPDATE AFTER A FEW DAYS: (5 Stars)The range on these with BT 5.2 is phenomenal. I left my phone downstairs, went upstairs, essentially to the other end of the house and I was still able to listen to my music. I live in a very old house with plaster and lath walls. I did find though that in the bathroom, the TV sound signal got very choppy as it has to travel though at least 4 walls to connect to my Chromecast with Google TV.The physical control buttons take some getting used to. I find the volume control often pauses playback as, instead of a 2s long press, I pressed it for less. When I change the volume, it often increments too much and I press again, but not for long enough. Actually, I prefer to just adjust volume on my devices, rather than directly on the earbuds - much easier. The buttons though are great when adjusting the position of the earbuds in your ears as you aren't activating any touch controls, like with most out there.I've been using these earbuds a lot for late-night TV viewing as I can listen without constantly having to adjust the volume, so as not to disturb anyone who's sleeping, but I keep gravitating to watching YT music videos as the sound reproduction from these is awesome.I did have trouble pairing with my tablet. Firstly, the earbuds were connecting immediately on opening the case with my phone. I turned off BT on the phone and still I couldn't pair properly with the tablet. I could see 'LE-Headset' paired, but no 'TRIBIT FLYBUDS C1' also listed. It wouldn't 'connect' to just LE-Headset. I eventually long-pressed the reset button on the case, tried again and voila, connected! That's been the only issue I've had with pairing, other than making sure the device I actually want to connect to is the only one with BT on. I've had to listen first to work out what I've been connected to!ORIGINAL REVIEW:I have used some on-ear Soundpeats stem earbuds for a couple years and have been fairly impressed with them, but only when I use a graphic equalizer on my phone to boost the missing bass. I hate being tied to the phone and the equalizer app for my listening enjoyment.I don't usually use earbuds for calls, so I'm not commenting on their performance for this.My daughter has some SkullCandy earbuds with silicone tips that have a much better bass, but they have a very muffled overall sound. I did some online research and came across these TriBits. I'd never heard of the brand before, but the Flybuds C1's had really good reviews for their sound quality from the "quality" reviewers on YT. I saw a Lightning Deal for $59 and decided to order them. I had the option to return them if disappointed.I received them today. They paired easily and immediately with my phone. I played some music and quite frankly, I'm completely blown away. I never expected these little earbuds to be this spectacular!I always have wanted a full frequency range with punchy, but not overpowering bass, crisp highs and clear, realistic vocals. The last time I experienced this was with very pricey Bose QC over-the-ear 'phones, many years ago. I've always been disappointed with the more discrete and convenient earbuds, both in- and on-ear. It's always been one or two out of three, but never all three. These are all three, plus a very comfortable, multi-hour, stay-in-the-ear, wearing experience. I have to reduce the volume on my phone from the typical level 12 to 6 as the volume is much higher on these Tribits. That said, at an ear-busting level 15, there is zero distortion. Unbelievable for under $75.You can really experience the range and clarity of these earbuds with Symphonic Metal music, typical of the bands, Nightwish and Eluvitie. SM is a very complex sound with heavy rock bass and drums along with the whole gamut of instruments from guitars, harps to violins and powerful vocals. I have found these earbuds capture every detail and I'm hearing facets I've not heard before! Every frequency is balanced perfectly. The vocals are clear as well as the highs and the bass is just right; powerful but not overpowering. You do have to have a good seal to maximize the bass. Tribit provides several tips, so you can get that perfect fit. There is no active noise cancelling, but the tips do reduce the background noise enough that you want to remove at least one to comfortably talk to someone.So far, I've listened to The Struts, Nat King Cole, Julia Michaels, various Country artists, John Legend, Katy Perry, A-Ha, Celine Dion, R.E.M., among others, as well as the isolated vocals of Freddie Mercury. All I can say is Wow! I swear I can hear Freddie's spit flying. LOL.I'm listening on my Tribits as I write this and have to keep stopping to replay some songs to hear the new nuances. I just realized Freddie has a very faint background beat to one of his vocals. I've missed that all these times!It's rare that I'm impressed with a new product, but this in one of those occasions.I let my wife try them and she said, "These are awesome. Buy me a pair!" Her earbuds cost almost as much as these Tribits. There's some bass, but they sound tinny in comparison - the two out of three again!I'd recommend these to anyone who doesn't have a $200+ to spend on the well-known brand 'premium' earbuds. You'll be hard pressed to tell the difference! They look awesome too!I'm buying a pair for both my wife and my daughter!