What is Bluetooth and how does it work?

Did you know that your wireless earbuds contain a tiny radio transmitter?

By: Shreyas Sen, Purdue University, The Conversation

Outlets: The Conversation

Published: February 23, 2026

Words: 755

Last Updated: 9 hours, 59 minutes ago

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By Shreyas Sen, Purdue University

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

What is Bluetooth? – Henry, age 13, Somerville, Massachusetts

How do headphones, toys, gadgets and other devices talk to each other without any wires? Many of them connect with Bluetooth. It’s a technology that allows different devices to communicate wirelessly. Think …

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