Bluetooth speakers work by using Bluetooth technology to connect wirelessly to a device such as a smartphone, tablet, or computer. When you want to play music on the speaker, you simply use your device to connect to the speaker via Bluetooth and then play the music as you would normally. The speaker will then receive the audio wirelessly and play it back through its built-in speakers.

To use a Bluetooth speaker, both the speaker and the device it is connecting to must have Bluetooth capability and be in range of one another. The speaker will have a Bluetooth antenna built into it, which allows it to communicate with the device and receive the audio data.

Some Bluetooth speakers also have additional features such as the ability to connect to other Bluetooth speakers to create a larger sound system, or the ability to accept voice commands through a virtual assistant such as Amazon's Alexa or the Google Assistant.