R4 MP3 & MP4 Player Spotify Player with Bluetooth and WiFi 4-Way HiFi DAP Android 12 OS 3.5mm PO+4.4mm Bal 32G+2TB Scalable Memory

This Device is great if you want to listen to music offline. There is a lost of settings and customization within this device that takes a while to get used to but works well. The option to expand the storage is a plus and easy to access within the device when importing music. Connecting to bluetooth is easy to do and the sound quality is convenient but it does not compare to listening to it with wire headphones, there has been latency and skipping if I'm using bluetooth while I'm walking so keep that in mind while exercising. The touch screen is not very responsive at time compared to your usual smartphone but the physical buttons make up for it. The device itself is well made and sturdy as well. Overall this is a great modern Mp3 player/DAP for the price the pros overweighs the cons in my opinion.

GREAT product! Downloaded 200GB+ FLAC files and at least 50GB of Spotify music to 1TB microSD over Wifi using SyncThing and Spotify, drained battery by 45%. This is incredible. Took a nap while it finished downloading a couple dozen GB of FLAC files on the charger, was cool to the touch and fully charged when i woke up several hours later. Spotify CANNOT be used while downloading files to microSD card, nearly unusable, even on a high speed card. The music i listen to all the time (using bluetooth, Spotify, Very High) is noticeably enhanced. I have not tested with wired headphones yet, but I assume the enhancement would be even higher. Connects and works well with both my vehicles bluetooth systems (Microsoft Sync and Generic GMC). Today it was 96 degrees F and downloading both Spotify and SyncThing/FLAC at the same time produced noticeable heat, but not much more than my phone while browsing facebook. The system is blinding fast and reacts to button presses immediately. The bit perfect system is very apparent. Very easy to use. I really can't find a reason to complain about this device. Besides maybe not having a GPS chip so I could use it entirely instead of connecting my phone when i need to get directions. But that is not the point of this device. I like the color better with the TPU case on and the warmth of the device when syncing so much data, at the same time, in nearly 100 degree weather would have been a bit much to comfortably hold the device for a sustained period of time. Storage capacity is adequate for testing the device, but you will want to use a microSD card formatted in exFAT format (mine came preformatted). I got the green one, and instead of the neon green, with the TPU case on, it is more of a forest green. I was between this and the M300, and the battery life is worth not having an onboard speaker. Body is aluminum and glass, very high quality and durable build quality.

The HiBy R4 is definitely on the smaller side for a modern Digital Audio Player (DAP). The R4 is largely a plug-and-play experience, it offers fewer advanced options compared to the R6 line, such as the ability to switch between Class A and Class AB amplification It can successfully drive demanding headphones like my Sennheiser HD 600s using the high gain setting. However, when paired with high-impedance headphones, the R4 does feel like it is being pushed to its limit (a minor trade-off for its size and price). The R4 was my first DAP, and I have found it performs like an upper-tier device for the price. The sound signature leans noticeably toward the warmer side, which is a tonal profile I personally enjoy. It delivers a rich, musical experience. I have enjoyed my time with the R4. The R4 has a tendency to get noticeably warm during prolonged use. This is particularly evident when playing DSD format tracks.

Sounds fine, nice little DAP for the price point, only thing im going to complain about is the glass. Ive had this for 5 days and the screen already has a decent sized scratch and a bunch of smaller ones from i don’t know what. I take good care of my devices i dont know where this came from. If you get one, it sounds amazing but you need to make sure you baby it. Also the included screen protector is cheap plastic, and theres no alignment bracket, due to the oblong screen its nearly impossible to install. 2 stars for the sound, 3 stars removed for the subpar screen and screen protector. Edit 3/8/25 Added 2 stars because this little device does really sound good and because customer support reached out and at least attempted to help. I bought a 6 pack of screen protectors and it works great. If you do get this, i have had no issues with battery life or heat as some people claim. It gets slightly warm when running my 80 ohm cans but nothing excessive. Its a good product, just get a screen protector because the screen genuinely is weak. You WILL not install the included screen protector on the first try. I would recommend Hiby either include more screen protectors or an alignment bracket.

Would not recommend at all. I have had this for 7 months. Everything started out great. Very easy to use, adding music to it was not difficult, the music quality with a decent pair of IEMs was good. It was everything I could have hoped for in a DAP at this price point. The battery slowly started to have issues after a few months and now it won't charge. It acknowledges it is being "charged" but will not actually take a charge. I have tried the OEM cable and different USB-C cables, I have tried charging via a brick plugged into an outlet. I have tried charging using my PC. Nothing works. It was great while it lasted, but I will not be purchasing another Hiby product again.

Aprender a usar todos os seu recursos demanda certo tempo, mas vale o esforço. Robusto, moderno, completo para os audiófilos que querem excelência sonora.

I bought this principally because I was going to have a time in hospital where wireless earphones would be impractical due to their limited battery life. the HyBy filled the brief having excellent battery life and provision for charging through USB as it plays. However, it was an excellent buy in so many other ways. It has no right to be so well built or sound so good for the money. It is significantly better than my 4-year-old IFI Hip Dac, Which is just a DAC. With all its many streaming features, the HyBy cost only slightly more! It uses Android, so one can use whatever apps you like, but the HyBy Music Player also has a 'Pure Mode' which bypasses the limitations for playing back high-res music built into Android. One can access. For example, one can access QOBUZ this way and it sounds excellent. There are also various equaliser options. There is a fancy custom one - I have forgotten the name of - which degrades the sound to my ears, but the parametric equaliser works excellently and has enabled me to tune the sound to my hearing and headphones very precisely. The headphone amplifier which can be used either single-endedly or in balanced form is surprisingly powerful and very good at conveying the dynamics of music. Although they are not an especially difficult load compared with some others, my £450 or so Grado RX2x headphones were driven well enough to give of the considerable best. The sound has very neutral tonality, very good dynamics as noted, and has a surprising amount of 'space' around it though this aspect of the sound is bettered when using the same headphones through my very much more expensive HiFi DAC and valve headphone amplifier. What is more the HyBy is not a bad streaming transport when used with the HiFi separates' DAC. It's even better when fed through my inexpensive SMSL gizmo which cleans up the signal using a better digital clock. All in all, quite a bargain!

Absolutely adore this player! Coming off a Hidizs AP80 Pro which is still working very well, the Hiby R4 is still a considerable improvement! I have a large personal library (about 14k tracks and growing, across MP3, AAC, WAV and FLAC formats) and being able to free up thay space from my phone to listen without having to connect to Wi-flDi is incredible. Paired with my Sennheiser HD 660S2 headphones, it's and been such a joy to use during work. I've used it pretry much every day since it arrived!

Muy contento con el desempeño el audio es mas nítido y con el equalizador suma mucho el sonido mejora aún mas con audiofonos de cable, principalmente lo compre para usarlo específicamente para música y podcast y que se conecte a mi auto , de manera que las notificaciones del celular no esten molestando a la hora de escuchar música super recomendado

I have a Fiio M11S that I manged to bounce off the foot of my chair and crack the screen. I sent that to China for repair and sat without a music player. Then I bought an M300 which couldn't drive my cans. I sold that and bought this. It is good. It is also nicely styled IMO. I bought a separate strap which is also v good. The MSEB equaliser is beyond me but is very capable. It sounds quite neutral and I can't quite get the bass to where I like it. I would recommend it but...my music is on a separate sd card for convenience although I write to it though usb typically. From fiio to hiby no issue. From hiby to fiio however there appears to be some incompatibility in file format. Even though they look the same, neither the fiio nor my laptop can see anything written to the sd card whilst it was mounted in the R4. I had to delete the files in the R4 then rewrite the to the sd card from my laptop. So. Yeah. That's a thing.