Can I use small electrical devices such as battery chargers and hairdryers in China?
Yes, but you will need a set of plug adaptors and a power converter, unless it is built into the cord. My husband has a set called a “Voltage Valet” that he has been using for overseas trips since the 1980s that has worked very well in China. I do recommend that you have a set of plug adaptors because I have seen different plug setups in different hotels. Hotels very often have hair dryers available in the room, or they can be obtained from housekeeping.