The connection is strong, it never dropped out. The clarity is great and the volume level can get very loud with IEMs. The battery life is long, and the clip is very useful. It is tiny and lightweight.

This perfectly suits my needs as a Bluetooth transmitter. It is tinier than expected (about the size of a usb thumb drive) and very easy to stash in a pocket. The battery life is also totally adequate for my needs. I have used it for several hours at a time and have never had the battery run low. The quality of the sound is very good, as is the volume variability.

This is an amazing value at $20. I've tried them with audio technica ATH-M50X closed ear cans and cheap KZ EDX Pro IEM. Both sound very very good, almost indistinguishable from using a type c CX31993 DAC. Battery life probably isnt 12 hours with LDAC, I'd say maybe 6-8 hours, but thats still very good for LDAC. The receiver itself is also very small and lightweight, clips easily onto your pocket or shirt and you dont notice it at all.

I've had this for a few days now, and I cannot recommend this enough for those who want a quality Bluetooth adapter with a good amp/dac without spending big bucks. I dont consider myself to be a hardcore audiophile, but I definitely do notice differences among headphones, and this absolutely brightens everything I've plugged in to this. My Tin T2's come alive with this, as opposed to when using the Google USB C dongle, which is also fine to use in most circumstances. For context, the lowest volume setting made the T2's a little too loud at night for my ears. That's pretty good if you ask me. My HD599s are also very happy with these, and my V-Moda M100s also come alive with this. Its super small, light, and has some excellent range. What's not to love? Well... there are a few things to consider.First of all, wireless reliability will never be as good as direct wire. That's just a fact of life. While it paired just fine to my Pixel 8 and Tab S6, it sometimes requires a disconnect and reconnect to the source device to get it to recognize LDAC capability. Otherwise it plays in AAC. This only happens once upon power on, and it doesn't always happen, so its just a minor inconvenience.What I find very annoying is that when both my tablet and phone are on, turning on the adapter results in it connecting to both devices at the same time. Yes, I realize that's Bluetooth 5 at work, but I don't want it connecting to both by default on every start. May be just a minor inconvenience for some, but it may be a big one for others, so keep that in mind. You can disconnect the adapter from the second source sure, but that is another step in the process if your two Bluetooth sources are nearby. I should also mention that I had a little trouble pairing this with my Linux machine, but after a few tries, it paired and connected. I suspect this is probably due to Linux Bluetooth support being a little finicky compared to Windows and MacOS.Since this is a budget and entry level Bluetooth adapter, there is no app support on mobile phones. The only function in the Fiio app is firmware update management, so if you want to EQ, your audio source needs to have a system level EQ in place.Build is overall very nice, however, the sides are made of that piano-black plastic that scratches just by looking at it. Not a big deal for me, but might be for others.The clip is placed in such a way that the 3.5mm jack will be facing upwards when the unit is clipped to a shirt. This can be annoying for some, but I haven't found it to be a big issue for me.The biggest drawback for me is when the device has low battery. The adapter has a voice that gives you feedback of the adapter state, like power on, source connected, disconnected, etc. This isn't an issue for me as there is no screen, so feedback is nice, and LEDs can only accomplish so much. BUT, when the battery is low, the voice will constantly repeat "please charge" every 3-4 seconds on repeat. In essence, it interrupts playback with this voice every 3-4 seconds on repeat until the battery is charged enough. This is almost a deal-breaker for me, BUT, when considering the price I paid for this, I will deal with it, especially since everything I own has USB C now.With all that said, I would happily recommend this and deal with its shortcomings, given its price of 20 dollars. If it was more than 30 dollars, I would not be saying the same thing.

I buy FiiO for their excellent audio quality, but do not recommend them due to their typical build quality, its gonna break its just a matter of when, but...The Good:The BTR11 has amazing audio quality for the price!Excellent soundstage.Excellent bluetooth range, no latency when playing games or watching vids.Its lightweight and small.Charges quickly enough.The bad:The build, it's all plastic.The plastic hinge is what broke first on my old uBTR, all the buttons soon followed, i have a feeling this btr11 will end the same way.The battery life. It's not great. I wish it lasted longer than it doesNo USB DAC capabilities, ive tried connnecting it to my phone via usb and no go 🫤Wouldve been nice to have tbhIn conclusion: I'd say its well worth it, its fairly priced. I got what i paid for, for sure.

I was given an antique pair of B&O 3 speakers -- gorgeous speakers that are hard to connect to anything outside the B&O universe. So I got custom cables to convert B&O's proprietary connectors to a 3.5mm jack, and then plugged the jack into this FiiO bluetooth receiver. Works like an absolute charm, everything sounds fantastic. This bluetooth receiver works well -- the connection is stable, it supports LDAC, it uses the latest Bluetooth 5.3, and it's about as cheap as you're going to get a receiver, let alone a quality one like this. Final nice feature, it works while being charged. Maybe they all do, dunno, but this one does. You can stop looking, get this.

As you can see, I have both the black and white version.I like how light it is, I also like the battery life and the way it sounds, but there is one major flaw that I cannot overlook.The major flaw is the sync. I use mine for my desktop as a wireless earbuds solution, since I stopped using headphones/headsets to avoid the "gamer dent" in the head area. As you can imagine, I use these for around 8 hours a day.The problem is after around 2 - 3 hours of continued use, the sync on the sound gets delayed, so when watching videos or playing games the lips movement and the sound doesn't sync which makes it really annoying.I've had many different bluetooth receivers over the years, and these are the only ones that develop delays after hours of usage. While I can fix the sync issue by turning the device off and then turn it back on again, it gets annoying to do it 2 - 3 times a day.The only reason I'm replacing my old ones is because the battery life isn't as good anymore.I give it 2 stars, because for my personal usage, it doesn't work.But if you just listen to music and not watch videos and stuff, then I can see this working out just fine.

The FiiO BTR11 is excellent value for money. Yes, I wish it supported more codecs, and the battery life (which isn't bad) could be longer; but to get a 3.5mm jack on a phone without one (and without using the USB-C port) I don't think you can beat this for the price.The audio quality is fine - better than the built in 3.5mm jack on some older phones I have used. Build quality - yes, it's plastic, but it doesn't feel like it's going to fall to bits.The FiiO Control app will detect this device, but is basically useless (the only available option is Firmware Update).

Good sounds reproduction nice and clear with good volumeValue for money 👍