HiBy W3II Headphone Amp Bluetooth 5.2 Receiver USB DAC for Car Audio/Smartphone/PC/Laptop

Muy bueno para android. Lo malo que en iPhone no funciona la aplicación. Pero si aumenta muy bien el volumen en audífonos.

This is a super simple, great sounding Bluetooth headphone DAC. It's also tiny and very lightweight. I don't think the project pictures really convey how small this thing is. Just clip it to your pocket or jacket and forget about it.It has really good battery life. I can definitely go a full day of listening without needing to charge. And the Bluetooth range is incredible. I can go all the way across from my house and even a little outside and still keep the connection. That's pretty unheard for BT headphones. I also have the fiio btr5, and that thing starts losing signal one room over.For ease of use, it connects very quickly and reliably. Unfortunately it only connects to one device at a time, so if I switch between my phone and computer, I need to turn it off and re-enter pairing mode while telling your new device to connect to it. The controls are super intuitive and can be adjusted just by feel. I tried out the app, and it's straightforward enough, but I really don't want to be bothered with equalizers and such.Luckily it sounds just great without any tinkering. Compared to my brt5, I may give a slight sound quality edge to the fiio, but then again, they may be equal. When I listen to them one after the other, I can't place any real difference in the sound. It definitely doesn't seem to have any audible noise or add any compression. Bass, treble, imaging, etc are all exactly as my headphones sound through a hard wired connection. If I did an official blind test against the btr5, I doubt I could pick which is which.I have Phillips x2s, koss kph40, and koss ksc75. I can listen to any of these headphones for hours though this device; it's almost addictive to have such good sound so mobile.The one potential problem is that it has a combined DAC/amp chip instead of an additional analog amp circuit after the DAC. This means if you have very high impedance headphones or a very low volume source, it may have issues driving them loud enough. It has plenty of volume to spare through my phone or computer with all of my headphones though.Get this if you want high quality, mobile sound through your wired headphones. At this price the only reason to go more expensive is if you have difficult to drive headphones or need need to devices connected at once. Going for a more expensive unit probably won't make an improvement in sound quality, but you may very likely sacrifice BT range and ease of use.

No se como pude estar sin el,Es como si toda la vida hubiera escuchado la músicaIgual que un video de baja calidad.100 % reconendado, en el equipo de sonido del AutoMejoró un 80%

Se escucha bien y se conecta sin problema por Bluetooth los m50x los mueve sin problema por ejemplo pero tengo problemas con el conector 3.5 tiene falla al conectar y se escucha solo un lado, mueves un poco el cable y se conecta y luego vuelve a perder la conexión . Es una pena ya que estaba muy satisfecho con mi compra hasta que empezó a fallar de la noche a la mañana justo al vencer el mes de garantía con Amazon

Let's start with I've had the btr5 and the qudelix k5 and this thing is great if you don't need a crazy amount of power. I have focal headphones and this drives them very well. I did like the qudelix but the LDAC on my zfold 5 wasn't working well. But this one works great! Has great range amazing battery life and is less than half the cost. The app works but isn't anything fancy. You have EQ but it distorts the sound so I don't use it. If you want something cheap with very good sound and decent power then this thing is for you. I will point out that the power output over USB was significantly less then Bluetooth. Over all I like the sound the battery life and the size.