Questions about Audio Pro C10 MKII

I bought the speaker mainly because of the 6 preset buttons that can be programmed. However, I simply can't manage to programme them. can it be that it only works with spotify (I don't have it) or does it also work for other online radio stations such as Radio Swiss Pop? thank you!

I often take my cue from customer feedback, but unfortunately there is very little here. I also find only a few reviews and videos on the net, what's the reason for that? :-) Is Audio Pro new on the market or has the C10 MKII just been launched? I'm looking for a multiroom speaker for the bedroom, preferably without Google Assistant (unless you could disable it permanently). Would also like to have preset buttons for quick selection of a station and a forward/back button, this model seems to offer both :-) so that I don't always have to have my mobile phone at hand. Can anyone say anything positive or negative about this model? Does anyone know of any alternatives? Thank you!

Is it the MKII version? At least the pictures are from that model, and there is another article wich seems to be the first version the "Addon C10": https://www.galaxus.ch/en/s1/product/audio-pro-addon-c10-bluetooth-wi-fi-airplay-aac-multipair-multiroom-systems-6285915?supplier=3204073

Hello Can someone give me the mass of the speaker?