It is possible to connect a tablet, smartphone, etc. via Bluetooth and stream music to the radio (there is a Bluetooth option in the sources). However, it is not possible to listen to the radio on Bluetooth headphones. Otherwise, Bluetooth works as a source but not as a transmitter.

It's also worth noting that entering a password, e.g. to listen to Internet radio on a secure WiFi network, is rather tedious because, as the device has no keyboard, you have to scroll through the alphabet letter by letter or sign by sign using the scroll wheel.

What's more, the sound is pretty average; it's just a little auxiliary radio. You should also know that if you remove the batteries to recharge them, all the settings are lost!

The Bluetooth function unfortunately only refers to the use of the radio as a loudspeaker, e.g. as a connection with a smartphone. Listening to the radio with Bluetooth headphones is unfortunately not possible, although desirable.

I can't answer that question, I haven't tried it yet. But I will do so soon. But I wouldn't buy the device again, there's hardly any reception in Austria.

I have never tried it, but I think it can be done.