Question about Copenhagen Trackers Gemstone

According to "Copenhagen Trackers", the "Gemstone" can be used in Switzerland, as LTE-M and NB IoT are available in addition to 2G connectivity. As 2G is no longer available in Switzerland, the "Cobblestone", for example, no longer works.

Thank you dear AI for the answer. However, exactly these points already applied to the predecessor tracker. That's exactly why I'm asking. According to the process of elimination, I would also answer yes to my question. However, I would prefer a positive answer that says "yes, it says here that it works with the Swiss network and the SIM card also works with the following suppliers" or something similar.