The Swiss Franc (CHF) is the official currency but Euros are accepted in most shops and restaurants. Actually, 1 CHF = 0.8 Euro and ~1 US $.
230V / 50 Hz network, J-type sockets.
Swiss Health System
Switzerland has a very good health system; Lausanne has many doctors and one large University General Hospital. Health costs are rather high, a travel insurance covering these risks may be helpful.