I have a build in stereo in my car, have changed out the speakers but want to keep the unit and amplifiers stock to safe space and keep the look as original as possible.I tried a lot of these Bluetooth units from different brands, versions and prices but this was the only one without distortion and just more clarity and bass punch.I only use it in car so cannot tell you the hifi set quality, it’s a bit bigger then the rest but got a build in battery you really want for in car use and more connections because of that.My previous one had BT 5 and this BT 4 I think but the sound quality is a big difference, so don’t blind pick the highest version because it doesn’t have anything to do with sound quality I now know.

Sound quality is very bad, do not buy this!

Product works fine, sadly the 3.5mm cable that came with my set was broken, with only the right channel working correctly.I tried another cable and that worked fine.

It works as it should; it streams audio from my devices to my hi-fi.The only issue I have with it is that it automatically pairs whenever my devices are nearby. I would prefer it to be passive and only pair when I want to stream to it.It also doesn't come with a USB adapter, only USB-A to micro-USB cable. Not a big deal, just a minor inconvenience.

Like title says. If not it’s buggy

Works as intended, Bluetooth signal seems good.