FiiOKA15 Portable DAC and Headphone Amplifier (Black)

It functions well with all the Android devices I've owned. You'll get it's all of you use USB Audio Player Pro which is a good app especially if u use Tidal. But it takes over your phone's entire sound so if you lay back and list to music you might miss a call. But I digress, I'm not going to say this is thee best sounding dongle, but it's compact, has a screen and great options, and it easily wins most character as far as design goes. Honestly this could have sounded like tin cans clanging together and I still would have bought it. But don't worry it doesn't. It actually sounds pretty darn good I'm just putting it up against some tough competition. I took some pics for size comparison cuz it is tiny compared to life thought it was going to be which was awesome actually imo. Oh and get the blue one because it comes with the leather black case so you kind of get black and blue for the price of one if you were undecided. It's hard to give a 2 star review to great sounding DAC/Amp dongle. But, I've put so much work into this thing and what's the worst is that it broke my favorite phone of all times (The Nubia Z60 Ultra LE) because the cable connector is as stiff as a board which turns the USB plugs into pry bars and caused the port on my 700+ phone to be unusable. Hence the pictures of it attached to my new and far interior S25+. Not to mention it has a mind of it's own and the volume fluctuates depending when plug it in or in what order I plug it in. To get it to properly run at it's full preferential you need to use it with USB AUDIO PLAYER PRO. Which brings it's own suite of problems vis-à-vis calls and notifications. Because the app completely takes over the audio. But if you do decide to get it I recommend The SHANLING L3 cable or a xiwai 2 in 1 USB-C OTG converter male to male. There was a little space between my phone and the m15i so I use 3M double-sided tape to stick it to a cheap case and that's been my solution. But honestly, is recommend the iFi Go Link Max and to update the firmware on there website via a Windows computer. I messed up and they walked me through everything the man's name was Liam and he couldn't be more helpful. And honestly I think this thing sounds better it's got 130 DB dynamic range. Questyle is vague with their mw output but on all my ANDROID devices the volume has been almost the same IF the M15i is working at peak performance. Also the Onix Alpha Xi1 is supposed to really good too. It has the same components as my Fiio KA15 which definitely wins coolest looking nostalgic dongle but even with the higher rated power it's pretty much running over ear and IEMs at the same volume but doesn't sound quite as good as either of mine. Also I'd recommend getting the Shanling L3 cable to go with it or the xiwai 2 in1 USB-C OTG converter, 3M double-sided tape and a super cheap non frosted clear polyurethane case for your phone if you want to go the semi-permanent route it's pretty convenient. I included a picture with the Questyle M15i with that same setup. Seem like Questyle review though as far as that device goes. Oh and this device does not have a battery it runs off your phone's battery just in case if you didn't know that.

This is a fantastic product which allows me to listen to audiophile wired headphones using my Samsung S24 (which does not have a headphone jack). I love the Bluetooth functionality and there are lots of customerization options including an equalizer in the app.

This DAC breathed new life into wired headsets that I believed to be long dead and outdated.

All right so this thing sounds really nice, sounds a little smoother and a little more high Fidelity than your average basic DAC dongle, but I don't think the cable is going to last you long I mean you put it in your pocket and that thing just bends in half and they didn't really give it any type of support so I think that cable is going to wear out pretty quickly. Now if you want to use the EQ or the parabolic EQ you can download the app, it's a little slow in a little laggy but once you get your EQ set up it's perfect, if you're not needing to use the EQ then there's no point to download the app as you can do everything else from the buttons right on the unit. It's nice to be able to tune your own headphones with the EQ because well, not every set of iems or headphones is going to be what sounds right for you so the option to EQ them is great especially when you can adjust the q of the EQ and the exact frequency when you go into the advanced EQ settings. It sounds very clean and clear and it's a nice little dac, it's really easy to use you just plug it in to your device with the USB cable in plug your headphones in and it's working, there's no battery, there's no Bluetooth which is awesome, and it it should be compatible with a large amount of devices.

Excellent product. Does everything it's supposed to do well and a quality build. You probably can't find a better DAC for this price. Product came on time shipped from Amazon.

Really does a great job in amplifying sound

Tiny, yet bright and informative.Sound is smooth with full soundstage and balanced frequencies.Not too bright or harsh. A natural accurate gentle mid range with a pleasant treble. I run several cans from my small AKGto my Audeze LCD-2.Base is accurate and punchy. No boominess here.

Absolutely gorgeous sound. And DSP on the board.... Yes!