A variety of electromechanical switches have been developed and introduced for a range of applications. These switches are being developed due to significant process in switch designs and the efforts being made to reduce device size and increased performance on the bases of high reliability, safety, and use in extreme environments. Some of the main types of electromechanical switches, include DIP, keylock, pushbutton, reed, rocker, rotary slide, snap action, tact, and toggle. Elma Electronic's MV Series Stepped Attenuator audio input switches with SMD resistors enable precision volume control, offering the user an input selection path without loss of audio fidelity. The input selector switches are also designed to save time, space, and money of users, while ensuring better performance and reliability.