I have a very simple “audio/video” setup in my room. My main computer display doubles as my “TV” for playing videogames and watching movies. Technically speaking is just a 22″ HDTV with a bunch of input options, which I have connected to all of my devices, mostly through an HDMI hub, so I use the same screen for my computer, and my various consoles and audio/video devices.
Now, I’m not an audiophile, but as you normally get to expect, its integrated speakers are kinda too terrible to actually listen to anything through them for more than 10 seconds, so I have a couple of entry-level PC speakers connected to the TV audio output, which give relatively decent sound, or at least, better than with the monitor alone. Now, as all my gaming consoles and A/V devices go to the same TV, this is a pretty centralized setup, which is great for most of what I do, and has worked really well for years, but stops being great when I want to listen to something not physically connected to my system, like my phone, laptop, tablet, or whatever. So I thought of adding a bluetooth receiver somewhere in between.
After an online search I ended up buying this nice little module, which is essentially a BT 4.0 receiver that works with 5V. By default it will redirect whatever it receives through its physical “AUX IN” port to the output connector, but when a device connects to it over BT, it will ignore the physical input and play the audio it receives wirelessly instead.