Bluetooth 5.0 Receiver, Wireless 3.5mm AUX Jack Audio Adapter, Portable Hands-Free Bluetooth Stereo Receiver for Headphones, Car Speakers/Home Stereo, Black

Received product in good condition.

It works great, battery lasts a long time and I use it to turn my amplified speaker system with 3.5mm (headphone plug) input, into a Bluetooth speaker system for my cell phone.

The built in battery failed after a few months and the product could only be thrown away.

The little 3.5 mm auxiliary adapter doesn't fit the plug to my headphones - Audio Technica ATH MSR7. That's the main reason why I bought them. Doesn't work unless I plug it at the other end of the cable, which doesn't make sense. I got it to have a wireless headphone.

For $8.99, I was looking at this purchase only as a test case to see how well everything connected etc. between my macbook pro and my Bose Wave CD player with no Bluetooth. I figured that once I knew that everything worked well, that I would invest in a more expensive receiver with better sound quality. But this one is doing the job very well, and I'm perfectly happy with the sound quality. I did some quick comparisons with this, plugging directly into the minijack, and I don't notice a huge difference. True audiophiles probably would, but a true audiophile wouldn't be using Bluetooth in the first place. The battery life is pretty good, although I usually have it plugged in. Even the latency isn't that bad when I'm watching youtube videos, etc., although I'm sure that the small lag would be more of an issue for gamers who would want things like an aptX codec in their receivers. All in all, I'm very pleasantly surprised with this and would recommend trying it before investing in a more expensive receiver. Quick addendum: sometimes when the unit is plugged into the USB power and has automatically powered itself down after some time, it's a bit glitchy to switch it back on. Simple fix though. Just unplug from USB power, switch it on, and plug it back in. Hope that's helpful.

The included instructions were for a slightly different version of the Device. Presumably it has been updated since these were printed. It paired with my iPhone and appeared as a connected Bluetooth device however attempting to connect to the device as an AirPlay sound output just fails. You get to hear a beep through the headphones but that’s it. I tried it separately with headphones and an amplifier, and none of them worked. I tried changing the Bluetooth settings to recognise it as various headphones and car stereo connection types, but they all failed to produce sound. Like another review I quite enjoyed reading, this thing does seem to be a waste of perfectly good atoms.