Audio

Small audio modules and parts for adding sound to projects, from compact buzzers and novelty speakers to playback modules, preamp boards and multichannel amplifiers. They are used for voice prompts, sound effects, alarms, simple music playback and any application that needs an audible interface.

Key attributes include output power and fidelity, impedance and voltage ranges, frequency response, physical size and mounting, connector types and cable options, and how easily a module can be driven by a microcontroller. Some parts prioritise compact, low‑power beeps while others offer higher fidelity or multichannel drive. These components handle audible output and interconnection rather than sensing or power distribution.