Hello
A normal chinch cable is sufficient, such as this one here (inexpensive version; of course there are also more expensive ones):
Lindy Stereo Cinch (5 m, entry-level, Cinch)Unfortunately, I can't remember whether such a cable was included in the scope of delivery. However, you may be able to find details of the product online, including the scope of delivery. Or you can contact Digitec support directly. Good luck!
PS: I didn't buy the device for myself, but for my great-uncle, who has been living in a retirement home for some time, together with a Pioneer amplifier and a record player (I bought the TechniSat, I think, but my great-uncle now actually lives with all these things 😉). The recipient is very happy, the device works perfectly. It's not high-end, but if you don't have this requirement, you can definitely be happy with it.