Microphone and loud speaker assembly for mobile phone, has key to simultaneously close interrupters of microphone and loud speaker circuits, where closing of interrupters does not disturb calls originated from respective circuits

摘要

The assembly has a key (50) to simultaneously close interrupters (34,36) in respective microphone (16) and loud speaker (22) circuits for allowing the assembly to cooperate with a mobile phone. The closing of the interrupters (36, 34) does not disturb calls originated from the circuits (16,22), respectively. A commutator connects conductors between and separates conductors from the circuits in two positions, respectively.