Public Radio Service

Public Radio Service (PRS) is a walkie-talkie personal radio service in the People's Republic of China, including Hong Kong and Macau, but excluding Taiwan. It can be used without a license. It uses 409 MHz. It is also known as PRS409. It is similar to the American Family Radio Service (FRS) and PMR446 in the European Union.

Technical information
The PRS radios use narrow-band frequency modulation (NBFM) with a maximum deviation of 2.5 kHz. The channels are spaced at 12.5 kHz intervals. They are limited to 500 milliwatts effective radiated power.