I hope it's better than the 'standard' version I bought that failed after about a week and a half, giving me an 'Accessory drawing too much power' warning which cycled off and on about once per second. It was the third out of three dongles that failed on me, two of which I bought after enthusiastic reviews here, The hardwired cable on my Tanchjin Space Lite (not reveiwed) developed an intermittent in its hardwired cable so, toss. The cable on my TempoTec Sonata developed one also but at least that one had a user-replaceable USBC cable- but replacing it didn't fix the loud POP when plugging it into my phone, so I don't use it anymore. It has a little window with an LED so yuu can see part of the curcuitry though.
On the other hand, my '$9 phone dongle' (as it's referred to around here), has none of the above problems and just keeps working.
IEMs generally don't need the kind of power being discussed here but if someone has higher impedance cans or low impedance. low sensitivity 'phones, this night be a good choice.