CCA KZ AZ15 IEM Bluetooth 5.2 Adapter, Sport Wireless Earhook, Long Battery Life Bluetooth Cable for​​ KZ ZS10 PRO X/ZSN Pro X/AS16 PRO/ZAS/Zax, CRA/C12(C pin)

I was a little worried that they wouldn’t fit My KZ ZSN Pro X but they fit perfectly, Sound Quality is surprisingly good for wireless. Battery life is superb one earbud has played 6+ hours of audio before needing a recharge. EDIT: Okay so this is three months later and now the right earbud says it’s connected but no audio plays out of it. Conveniently right outside of Amazon's return window so I can’t even get a replacement. Thanks Amazon!!

It does the job flawlessly, has long range too. Keep in mind however; that the controls on the earbud is pretty fragile and one little could potentially break em.

These are a good option to supplement a cable, if you want to charge your phone while listening to something, or you want to sleep with your ear buds, then these work! There is a slight, constant hiss while audio is playing, and I think the apple dongle produces more soundstage(I'm by no means an audiophile), and the LED's on the side are annoying. Apart from those things though these are worth the money.

These work pretty darn good but will not hold up if you sweat a lot I've been through several pairs throughout the years and I'm giving up. They need to work on the waterproof quality otherwise it's a good product.

Earhooks connect while in case. Connection cuts out sometimes. Case doesn't close correctly.