Aug 13, 2017 - 4:07 AM
in reply to beenaeem
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If you are charging your phone with a USB cable, and the TV in your hotel room has a USB port, you could use that.
You can also buy plug-in USB ports with Swiss prongs (photo attached).
As you already have a round two-prong adaptor that is commonly used in Europe, you can also buy an adaptor that you can use with it piggy-back fashion to fit the hexagonal Swiss power points (photo attached showing both ends of adaptor).
The InterDiscount store in the lower level shopping area of Zürich Hauptbahnhof (Zürich main station) sells both adaptors. They are open on Sunday from 9am to 8pm.