With cable or is the sound really great with Bluetooth? If he's better with a cable, I'd prefer that.
Hands-free calling would be nice and practical.
Which ones have you had good experiences with?
What else should I watch out for?
It would be home only.
Is about 200 euro enough?
I don't have a PC / laptop at the moment.
With cable is also possible. The signal is taken from the mini-USB socket (the charging socket) and via a jack plug to an audio amplifier. Such cables are available in stores.
Maybe a harman kardon go and play mini.
It is by no means mini, it is very large, can be connected with aux cable or Bluetooth, has great sound and really fat bass, very well processed.
At work, a lot of people use jbl's bluetooth boxes
You can also use it wired via Bluetooth, but there shouldn't be any sound difference.
https://www.amazon.de/...B08HGJ1QQK
the same
When it comes to sound via Bluetooth, it depends on which codec is supported by both the mobile phone and the Bluetooth speakers. The keywords are 'SBC', 'AAC', 'aptX' and 'aptX HD' (at least the most important ones).
The 'basic quality' is SBC, which is actually not that great. But actually every mobile phone and every Bluetooth speaker / headphones can do that. The best option of the above is probably aptX HD, but that's not available on iPhones. So if you have an Android smartphone, then I would make sure that your Bluetooth speaker supports at least aptX or better aptX-HD.
If you have an iPhone, I would rather not invest in a Bluetooth but rather probably a new investment. Better to use a wireless speaker.
In general, the range of Bluetooth is of course limited, if you leave the room, then it can get tight under certain circumstances.
After searching specifically for your home, you could also take a look at the https://www.nubert.de/nubox-aktiv-serie/1011/ from Nubert (a little more expensive, but two are also possible). This is an active stereo pair that can be played via Bluetooth aptX and also via HDMI and a few other connections. You can also try it out for 4 weeks at Nubert.