Based on the marketing materials, Ausounds supposedly prioritized sound quality (and a few other functions) with an ANC solution that is supposed to have little to no impact on sound. At least in that respect, I can report that Ausounds was *definitely* successful--there is such a minuscule impact on sound reproduction and quality with ANC running that I was hard-pressed to tell the difference on all sorts of music genres (pop, metal, alternative, instrumental) save for the most complex, over-produced, multi-layered songs in an absolutely dead-quiet listening environment. If you need some unobtrusive true wireless buds to deaden the din of a busy office or public transit commute, I think you'll be pleasantly surprised how well the ANC solution DOES NOT get in the way of the music!
Unboxing greeted me with a quality-minded presentation—some foam insulation on the underside of the lid protected the case and buds while the fitted cardboard mini-box underneath held the cable and extra eartips next to the quick-start guide, manual, and warranty card. Three silicone eartip sizes are included; as was usual for me after auditioning multiple pairs of wireless and true-wireless buds, I found the medium tips to be ideal so I imagine whatever size tip you normally use will apply here as well. The slightly sculpted ends of the mostly flat touch-sensitive surfaces make it easy to feel for the “sweet spot” to register a tap/touch command without needing to fumble around for the controls—responsiveness was spot-on with taps and holds mostly registering as they should (more on that later) during the week prior to this review.
As for the product itself, you do get a lot of pretty cool features and capabilities in a svelte little package. The case has a magnetic cover and rear USB-C port charging port (excellent!), and there is a stubby USB-A to USB-C cable included in the box. The case also supports wireless quick-charging with a 4-segment LED display indicating charge level. The buds are BT 5.0 which offers some advantages for battery life and dual-play options on supported BT 5.0-capable sound sources. BT range was outstanding but obviously depended on the source; I walked a full 65 feet from my iPhone 12, outside my office, across the living room, and through the kitchen before the first dropout; I could only move about 25 feet from my FiiO X7 II before the buds cut out completely; my old iPod Nano struggled to maintain connection when carried in my pocket but the connection was stable when I moved it up to an armband holster.
The buds are rated IPX5 for light water & sweat resistance. They do not feature any kind of rubberized skirting, fins, or other anatomically shaped bulbs or arms to help hold them in place inside the various folds of the outer ear. Instead, you are supposed to rotate the bean-shaped buds either forward or rearward until you get a snug fit nestled outside the ear canal. I was skeptical as to how well they’d hold up to a vigorous workout so I ran with them 2-3 miles every day for about a week. I was surprised that only one time did I notice the right bud feeling like it was just starting to shift out of place—definitely on par and even a bit better than other workout-oriented buds I’ve used over the years. However, my daughter has VERY tiny ears and couldn’t really get them to fit securely because they lack any kind of apparatus to help hold the buds in place, so keep that in mind if your ear anatomy is somewhat on the smallish side.
The AU Stream Hybrids support voice assistant activation and offer three types of sound modes during playback—ANC on, ANC off, and the obligatory hear-through that uses the built-in mics to help with situational awareness of the world around you while still pumping audio through the buds. As is becoming more common these days, you can operate either bud independently as well as in stereo mode which is helpful if you intend to use the buds to serve double duty for music/video playback and taking/making single-eared phone calls. Switching from stereo to full mono is as simple as putting one of the buds back in the case and the changeover is automatic; going from mono to stereo is just as seamless once the second bud is out of the case. Thankfully, the buds offer many spoken feedback cues rather than beeps and tones so you know what’s going on when you power up the buds, connect to a source, or change ANC settings.
But not everything was “summit-fi” awesome. Sound quality was mostly very good—highs and female vocals were clear without a hint of harshness or sounding sibilant. Imaging was actually decent for in-ear buds with L/R separation just slightly outside the head. Mids were lively and detailed enough to pick out individual instruments from a crowd; mid-bass and transient response was also good though the buds struggled to produce a really thick, thumpy low end (which is certainly not impossible for good, IEM-style buds). Don’t get me wrong, they do sound very nice; but compared against my higher-end, non-ANC buds revealed what I can only describe as a bit of a listless, overly neutral, or even “veiled,” sound signature in comparison. I suppose I should give the Ausounds the benefit of the doubt and call them more “polite” or “laid back”—but that’s typically not what I’m after when I pull out a pair of buds for a workout or commute. If I’m after neutrality for critical music listening, I’ll use a high-quality DAP, a dedicated headphone amp, and some really nice open-backed, over-the-ear headphones—but for a commute or workout or discreet jams at the office where the wireless features and ANC are the primary draws, I’m looking for something that’s lively and engaging and “fun” to listen to, rather than something a bit more tame and sedate. These sort of get there, but I feel like they are the kind of buds that are begging for a companion app to customize the sound signature (there is none). And sadly, despite the fact that they are BT 5.0-capable (i.e. higher bandwidth), they do not support higher quality codecs like aptX or aptX HD, which feels like a missed opportunity to elevate their potential beyond the competition. So…sound quality on its own is definitely listenable and enjoyable, but it isn’t what I would consider top-tier given the premium these buds currently command--YMMV.
Mic quality for phone calls was pretty good with callers telling me I was reasonably clear while out for a walk with the dog. ANC was decent, very similar to some other mid-fi ANC buds, but nothing approaching the likes of Sony or Bose-caliber noise reduction. They’ll definitely help quiet out car and bus rides, or fan and A/C noise, but they’ll only take the edge off the sounds of things like clicky keyboards or a loud restaurant—they certainly won’t ensconce your head in a bubble of near-black silence if that’s what you’re hoping for. But again, the ANC solution they do provide manages to give you a decent cut in ambient noise without impacting the music underneath which is definitely no small feat. I personally did not notice any tell-tale ANC hiss, so that was definitely a plus.
Usability did take an even bigger hit in my book, however. For one, there are no onboard volume controls so you’d better have your phone or DAP in your hands, or have settled on a normalized volume for your playlist before you start your run, because you can’t adjust the volume on the fly through any of the touch controls. And because the control scheme had to be largely duplicated between buds to allow either to be used independently, there are certain things you can’t do like change the ANC setting while you’re in the middle of a call because the control you’d hold down for 3 seconds to switch modes will disconnect the caller first (hold for 2 seconds)!
Pairing and reconnects also didn’t always work as advertised. First, I had some difficulty getting the buds into pairing mode if one bud was already connected to a different device. Now, you’re supposed to be able to hold the bud controls down for 8 seconds to enter pairing mode—but…NOPE, often times they would simply cycle through a new ANC setting (3 second hold) and then shut off after about 5 seconds. BTW, “power-off” using the touch controls is an undocumented function because nowhere in the manual does it say you can manually turn off the buds! Worse still, when I was troubleshooting a pairing problem with my FiiO DAP, I wanted to try resetting the pairing record only to discover that the pairing memory reset procedures were different between the included instruction manual and the same manual online…but neither seemed to work to clear the memory or put the buds into pairing mode, and the online manual referred to a “base button” on the charging case that for the life of me I cannot even find! Oh, and unlike virtually every other BT headphone or earbud, the pairing mode here is signified by blue flashes rather than alternating the red and blue LEDs (it has both); the fact that entering pairing mode isn’t accompanied by a voice prompt wasn’t helpful, either.
During my time with the AU Stream Hybrids, I came to regard them as a pricey “backup” pair of true wireless earbuds. Yes, I’ll be keeping them because they offer good, but definitely not excellent, sound quality (at least to my ears); and they feature decent, but not exceptional ANC--perfect for the gym or car when pristine sound quality isn't as big a concern. Again, that ANC does not sacrifice the sound quality you do get, which is definitely a distinction worth noting. But my experience also revealed some dodgy usability issues, and the lack of onboard volume controls, or even a companion app to help personalize the sound profile, make me question the value proposition of these buds for someone else given what similarly priced competitors can do for even better sound quality, and what some budget-priced competitors can do with similar quality ANC.