European Union: The Czech Republic joined the European Union in 2004.

Language: The official language of the Czech Republic is Czech, although fluent English speakers are common in the Czech Republic.

Currency: The official currency is the Czech koruna, also referred to as the Czech crown. The Czech Republic is currently preparing to adopt the euro. 

Card Payments and Cash Withdrawals:

Prague is generally a card-friendly city, still have some local cash with you. It’s best to get your koruna from a respectable source, but avoid using the exchange offices at the airport, bus, or train stations.

ATM: they are easy to find everywhere in the country, you just look around you and you will find a Bank with an ATM.

Connexion: The Internet is at a very good speed, with 5G. Wi-Fi connection everywhere you go, free or on demand in some restaurants or hotels.
If you are from the EU, roaming is free of charge. You can call and connect to your mobile data as if you were in your country of origin without extra costs.

Railroads: Trains are efficient to move from city to city, or to reach other countries in Europe. Traveling by train in the Czech Republic allows visitors to admire the landscape. There are over 7 000 trains in the Czech Republic that cross the country every day, servicing routes between the major cities, as well as connecting them with Austria, Germany, Hungary, Poland, and Slovakia. 

Plugs: Plugs are Type C and E. The standard voltage is 230V, and the standard frequency is 50Hz.