When traveling to Indonesia, you are subject to local laws and their restrictions. Certain objects such as satellite phones, drones, etc. may be subject to regulations under penalty of a fine. If you have any doubts as you're packing your bags, it pays to do a little research. Know before you go!
220 V is widely used. It is advisable to carry an adapter, although in many accommodations the sockets are designed to accept European plugs.
The telephone network is generally good, and WIFI is available in most hotels.
We advise you to visit the website of the US State Department or gov.uk website which provides travel advice for Indonesia. You will find general recommendations according to the areas visited but also current information which may be useful. For riders from other countries, please consult with your local government for the most current travel information.