Lap-top computers capable of operating on both 110 and 220 volts can be used in Denmark, but remember to bring a two-pin continental adapter with you since the prongs in Denmark may differ from those in your home country. For lap-top computers working on 110 volts only, converters are necessary.

If your mobile phone uses the GMS standard, your phone is operational in Denmark, provided your telephone company has a roaming agreement with a Danish telephone company. If not, you can purchase a Danish mobile telephone card/SIM card and insert it instead, and the phone can be used in Denmark.