Band switch use is mainly used in radios, tape recorders, television sets and a variety of instruments, typically a Multipole switch, its contacts are mounted on insulating substrates.

Band switch on the radio, is to change the access to the oscillator coil number of laps. Radio input circuits is an oscillation circuit composed of inductors and capacitors, discontinuous change can change the natural frequency of the oscillator circuit inductance range, which is the receiving band.