The great hardware is suffering from that great software. Windows drivers are outdated, mobile application is so so (but it works once you understand/accept the shortcomings). The tiny screen is not that good as well.

Za ok 400 zł. naprawdę warto.

Ordered this after returning 3 other products to attempt to do exactly the same thing - get the best sound from my music via my phone. Nearly ordered this as the first but for various reasons I tried the 3 other products, really wish I'd just bought this and saved myself the hassle.It's superb, absolutely tiny and lightweight, excellent build quality, good accessories and simple to operate. Loaded up the Fiio app, paired it and updated it in about 5 minutes. Then had a play with all the various functions - the Bluetooth connection with LDAC enabled sounds better than my Sony headphones do in the same mode.The USB connection took a little learning, I had to change a setting and then WOW! Tidal sounded amazing, really shows the quality of the Dac and amp chips in the BTR15. A little EQ fiddling had me grinning and nodding my head in moments. So much better than a wireless connection. Bass extension was excellent and highly controlled, mids sounded perfect - no overstating, treble extension excellent and no sibilance. The soundstage is expansive and easy to place instruments/vocals. Both male and female vocals sound epic. Almost as good as listening to my speakers and hifi equipment, a very worthwhile upgrade to the sound quality available from my phone in a very portable device - Fiio gets a huge thanks for such a great product!

I have been using this with both my phone and TV since the end of february, and I gotta say that it was a good purchase.People on reddit told me it was overkill for my KZ ZS10 Pro iem's, but I was tired of purchasing budget friendly wireless dac amps as they all had uneven audio and background noise (distortion) along with white noise.This has:- No distortion,- No annoying white noise,- No uneven audio,- The 3,5mm port supports dedicated separate control of left/right channels,- Ability to be programmed with your own EQ profiles (three of them),- Lasts plenty long enough for movie and music sessions,- Room for upgrading by swapping iem's.

Positivo:- La calidad de sonido muy buena, y eso es lo más importante.- Es bonito y agradable de manejar.Negativo:- La documentación y el soporte son horribles. Si quieres actualizar el firmware prepárate para echar horas.- La duración de la batería es insuficiente para mi (unas 4 horas). Hubiera preferido que pesara un poco más y que tuviera más autonomía. Al final me obliga a llevar un batería portátil para recargarlo en la calle.Lo recomiendo pero con esas pegas.