Do I need to bring a voltage converter and a plug converter to travel to the United States now?

The United States uses low voltage 1 10V, and China uses high voltage 220V. You must bring a transformer when traveling to the United States.

The types of sockets in the United States are as follows:

If you bring two domestic flat plug appliances to the United States, you don't need to bring a plug converter. However, if you bring a national standard three-level plug, you need to use a conversion plug.

Just convert the American standard socket into the socket type that can be used by the national standard three-level plug, as shown above ~