Speaker & Microphone
The speaker adopts an internal-magnet waterproof structure, with 0.5W–3W power options compatible with mainstream host amplifiers. The microphone uses a high signal-to-noise ratio electret chip, providing omni-directional pickup without dead angles. Tailor-made for building intercom systems, it covers entrance panels, indoor units, access panels, elevator intercom and other full scenarios.
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Active Components
Active components are responsible for signal amplification, switching control, signal conversion, and logic operations. They rely on power supply to perform core functions and serve as the 'core computing/driving unit' of electronic devices.
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Passive Components
Passive components handle functions such as charge storage, blocking or passing specific frequency signals, current limiting, filtering, and impedance matching. They do not actively amplify or convert signals and are the 'signal conditioning/support unit' of electronic circuits.