Audio Receiver Module

USB micro version: So far so good. Connected and installed perfectly first time. Sounds good enough. NO BEEPS, BOOPS, or connection glitches or sounds. Volume control works through the device well. Nice and small and will fit in project. Great price and value, so I bought 10. I am using the USB micro. The USB C probably will work the same, but you might have to use a PD workaround. USB-C is “smart” it should work at 5v, but look into USB-C trigger modules or similar. Or try a USB-A to C cable.

I love these boards, I've used them for years for small bluetooth headphone stations around my home and office. They are reliable, last indefinitely, and are extremely cheap. I opted to stick with the older micro-USB variant, since I have micro-USB cables with inline on-off switches I like using. I have 3D printed cases that these boards fit in perfectly. My son used to build cases for me for these out of Lego bricks that worked great. I've since switched the 3D printed ones, but I still use a lego board on the bottom to stick these to the under-furniture mounts we've always used. I like these to watch TV late at night via earphones without disturbing anyone- I can switch any of A/V systems to output to bluetooth and just plug headphones into extensions leading to one of these receiver boards. I like that these are BT 5.0 (older ones I'm replacing were BT 4.1) and best of all, these have no beeps or annoying voice announcements when connected. (My older ones made a beep sound on connection). The sound quality using bluetooth source and headphones with the 3.5 jack is great for music and media audio. I've never had delay between picture/audio from sources like Fire TV, Roku, Google TV devices, smartphone or PC. The range of these is so good I never get dropouts, but the range does lead to the only minor downside of these boards. They all show up on bluetooth device lists as VHM-314. I have several through the house and on first setup, it can be a guessing game which VHM-314 is which on a list of available BT devices. I wish the bluetooth label were easily user-writable, so that you could change the name of each to something unique. (I know this is possible with specialized tools and applications that can re-write the devices EPROM, but that's a bit over my head). At this price, for 5 of these boards you can't go wrong!

Just tested one so far, but these are basically ideal little bluetooth receivers for mid-fidelity listening purposes. The important parts: - Good audio quality overall. I connected to my recording studio mixer with good monitors to test, and the audio is not perfect (connecting via iPhone, playing lossless via Plexamp) and likely compressed AAC, but the end quality is pretty good all things considered. Slightly gritty in the high end and overall deflated character, but not bad and very listenable. - NO CONNECTION ANNOUNCEMENTS!!! NO CHIMES! This was key for me. I do not want any "Bluetooth Connected" or chimes or anything playing other than my music. I got these primarily to retrofit some speakers for my baby's nursery, which was playing loud chimes when I walked out of range or disconnected, which is not ideal. This will work perfectly as a replacement. - Easy and simple to power via 5V USBC or MicroUSB -- either version probably works, I got USBC because I have more of those cables lying around. Doesn't support PD, so you need to use a USBA-to-C cable for best results, but that's pretty standard for small devices like this. - Range is a potential downside, as it only has a standard trace antenna and no means of connecting a better one. But I like range for Bluetooth receivers to be fairly limited as I kinda should be within listening distance. Range is just fine in my testing, if I'm in the same room or on the same floor it generally stays connected. Overall I'm impressed. For half the cost of a finished Bluetooth receiver, you can get five of them and the only real difference is that there's no plastic box. 3D print your own or just foam-tape it to the back of a speaker and you're good.

My autistic kiddo has a special interest in speakers. But in the wireless world, older speakers he’d find at resale stores were a limited to wired inputs. I paired this board with a 3.7V Li-Ion cell, and a micro-usb charging board with adjustable voltage output. So I have a self-contained, rechargeable, Bluetooth to headphone-jack converter. I fed this little board with 4.95 volts, and it was immediately up and running. I can Bluetooth to my little box, cable the box in to an aux input on a speaker system, and boom, music. The fact that this entire build worked flawlessly on the first go amazes me. Nothing at all to complain about with this board. I was prepared for poor sound quality, but was pleasantly surprised that the sound quality was great. I honestly can’t hear any distortion in the highs or lows. Way more performance that I expected at this price point. Editing down to 4 stars. I built out 4 boxes, and one of the 4 has a bad left channel. Well, it randomly worked 1 time on my 4th or 5th power-on, but 95% of the time the left channel plays at about 5% volume. I guess at this price point a bad board in a batch of 5 is expected? The other 3 I’ve tested seem to be solid at least.

These modules work quite nicely in both Linux (Ubuntu 24.04) and Windows. They have great range (up to about 25-30 feet, even through walls) - and have good audio quality -- and they work without blasting my ears with deafeningly loud blaring voice announcements every time they are turned on -- or connected -- or disconnected (which was a problem I had with another similar module). When these Bluetooth modules power up and connect, all I hear is a few seconds of blissful SILENCE -- followed quickly by the actual received audio, which exactly how I want them to work. Good range - and connect silently without blaring voice announcements

These pair up almost instantly, audio quality is good, and the 3.5mm auto switches on ground so it can be desoldered and relocated if you are retrofitting something to have aux and Bluetooth. I have one behind my car stereo and another in a DIY speaker and both work great. It is a little picky about voltage but thats expected for audio gear.

Good quality product...good sound..easy pairing and connecting..Also made a box using 3D printer.

Unlike other Bluetooth modules there is no annoying pairing voice speaking in broken English. The blue led that is on it flashes quickly when pairing and slowly when paired. I would have preferred if it just turned to solid blue when paired. Unit works fine.

simple setp (no setup required at all) good sound quality and good range

Good quality, but you need an amplifier - I don't have one. Keep this in mind.