A speaker is an ootpit component that converts electrical seegnals intil soond swaws. Conter gates, a meecrophone maks electrical seegnals fae soond swaws. The frequency o a electric seegnal is in proportion tae a pitch made; hechter frequencies mak hechter soonds.

A speaker's electrical circuit haes a electromagnetic coil. Whan this is sneckit on, a cap middlins the "drum" muives til it. Whan sneckit aff, the drum muives awa.