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How do Bluetooth speakers work? Bluetooth speakers receive digital audio wirelessly via the Bluetooth protocol when paired with Bluetooth-enabled digital audio devices. BT speakers accept digital audio via BT wireless transmission; convert it analog audio; amplify it, and convert it into sound just as regular speakers would.

When it comes down to design, Bluetooth speakers are really no different than most other active speakers (with built-in amplifiers). The big difference is the wireless transfer of audio via Bluetooth rather than the typical wired connection (or other wireless methods). The main purpose of a loudspeaker is to act as a transducer that converts electrical energy (audio signals) into mechanical wave energy (sound waves). This is true regardless of if the speaker is wired or wireless.

The transducer element of a speaker is called the driver. Speakers may have many other components (enclosures, crossovers, amplifiers, etc.), but the driver(s) are the key transducer components that turn audio signals into sound waves.

Every loudspeaker works upon this function: an analog audio signal (alternating current) passes through the driver and causes proportional movement in the drivers diaphragm.