The buzzer is divided according to the principle of driving mode, which can be divided into: active buzzer (including drive line, also called self-excited buzzer) and passive buzzer (external drive, also called him buzzer)

The speaker is answered by the human ear at a certain distance, and the receiver is directly answered. The simple speaker is the earpiece. It is a device that can convert audio electrical signals into sound signals without sound leakage. It is now widely used in mobile phones, fixed-line hearing aids and the like.

Speaker speaker voice coil sound film automatic assembly machine As its name suggests, it is an automatic device for realizing the assembly of voice coil sound film for speakers and speakers. Now more and more manufacturers are introducing speaker speaker voice coil sound film automatic assembly machine.