2, you press MW, the radio receives the medium wave, the medium wave transmission distance is far, such as the central broadcasting station, the radio station in the province can receive, but the sound quality is not good. FM is FM radio, its distance is close, but the sound quality is good, can transmit stereo signals, such as your city's urban FM, traffic station, music station and so on.
3, the radio to SW, pull out the antenna, it is best to connect to an outdoor antenna, can hear shortwave, shortwave farthest, can hear foreign radio.