Questions about Hama Car cassette adapter for smartphone

I have not found any information about the length of the 3.52 mm jack cable, not even on the official website. But as far as I can logically deduce, the cable seems to be very short and should not be used for long distance connections. ► https://ch.hama.com/bilder/00089/stx/00089292stx.jpg ► https://ch.hama.com/00089292/hama-adaptateur-automobile-pour-cd-md-mp3-noir?srcLang=0&targetLang=2