I bought KZ ZS10 Pro’s a while back, and have been loving them since, and decided to go ahead and try this bluetooth set for them. I figured at the price point, even if it didn’t work right or was just unpleasant to use, I wouldn’t even be that upset. That said, I absolutely love them, instead of meeting expectations, they blew them away, and I’ve been super happy with them in almost every way. Also sorry this is so long….
Small side note, the cons list is *not* longer, it’s just more specific because I kind of had to nitpick a little bit, I genuinely don’t have much bad to say about these personally, the star rating should speak for itself.
TL;DR – If you want these for your pair of KZ IEMs, just get them. Do it.
– Sound quality – Obviously when paired with a set of IEMs that sounds good, I didn’t notice any real quality degradation. My ZS10’s sound just like I expect, and that’s exactly what I wanted
– Comfort – I wear these for 10 hour shifts at work, one ear at a time, swapping at lunch, and they haven’t been uncomfortable yet
– Battery Life – They will last well past 6 hours of continuous use, when I make my swap at lunch, I’ve been at around 40% life, and that’s 5.75 hours into my shift
– Connectivity – As of yet, I’ve not seen them even hesitate to connect to my phone, I open the case and I hear the little voice say “Connected”, seamless and super fast
– Build quality – While the case will be mentioned later, the bluetooth bits themselves are awesome, they’re solid, the buttons are well placed, and I’m not nervous at all that they’re going to fall apart or break on me
– The Case’s Function – The case genuinely belongs in both the pros and cons, it’s here in the pros because it does have a USB C charger (that it comes with, a cable at least), it has never had an issue with actually holding the modules to charge, and it has a foam bit in it to hold the IEMs in their well safely. It’s well thought out, and I think it does its job great
– Buttons – There’s physical buttons. You can’t press them accidentally, you won’t double tap if you didn’t mean to, they *can* be pressed with just one finger, they’re leaps and bounds above dealing with touch sensors. Yes it’s technically a “moving part to break” but they seem robust and they’re pleasantly tactile
– Value – While these obviously aren’t capable of producing sound by themselves, even including the price of these in conjunction with the ZS10 Pro’s, I spent around $75, which puts them at about half the price of the (original) Galaxy Buds I’d been using, and I like them so much more in terms of comfort, sound quality, and the fact that there’s no touch sensors
– Call Quality – They are described to me as “7/10” and “about what should be expected from a good quality pair of true wireless earbuds”, and I consider that beyond good enough for the price
– The Case’s Build Quality – To be fair, I don’t think it’s *that* bad, and it seems sturdy enough, but the hinge is a little flimsy when open. It also is a little chunky, but considering the size of the modules+IEMs, that’s not surprising(and not that bad)
– Button function – While I like that there’s no companion app, it’s a little unfortunate that you can’t change what the buttons do – For example, I’d like a double click on *either* side to do “Next Song”, but double clicking the left side’s button does “Previous” instead, which I almost never want. (This is a minor complaint for me though, I do have a smartwatch that I can use to control media anyway)
– Where the IEMs connect – Again, this isn’t a huge issue, but I did cut away a tiiiiny bit of the plastic around the connector that connects to the IEM, it doesn’t quite fit around the IEM’s connector, and feels like it should push all the way in, but there’s like another 0.5-1mm of length on the contacts. It felt fine how it was, and I’m sure it would have been, it was holding just fine before I modified them, but I feel cutting away a tiny bit of that plastic surround made a bit of a better connection
– If you have a smaller ear, or the original cable that comes with specifically the ZS10 Pro’s(potentially others, I’ve only ever had these ZS10’s ) doesn’t fit you well, these bluetooth bits may not be the best fit. They fit me *perfectly*, but the original ZS10 cable does as well, so that may be something to consider if you know your ears are smaller than average
– ANC/Ambient Modes – I don’t think there’s any ANC or Ambient modes, or if there are I haven’t figured out how to get them active. This is *not* a con to me, those aren’t features I want, but I figured it’s worth a mention