Telephone
The international country code for China is +86. In general, mobile coverage is generally good in China's main cities, but less stable in remote and rural areas. Speak to your service provider about rates and roaming services.
Disposable phones and SIM cards can be purchased in China.
Internet
Internet services are accessible from hotels and internet cafes in larger cities and tourist area, but is limited or non-existent in rural and remote areas.
Make note that many popular websites are blocked in China, such as META, What's App, X, YouTube and Google. This means that the functionality of apps such as Google Maps and Gmail will be limited. Consider using a different navigational service, such as downloading offline maps.
Electricity
On mainland China, three types of plugs are used: two narrow round pins, two flat pins of equal size and three-pronged angled pins. The types of sockets most widely used include Type A, I, C and F. Voltage is 220V/50Hz.
Many malls sell power converters and adapters for travelers. If you find yourself in need of a device, many hotels can loan you an adapter. If you are bringing a laptop or similar portable device to China, be sure to check the labeling on the power pack.