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How Bluetooth Works - A Dive Into The Emerging Technology


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By Jeremy Fish on August 10, 2015




We have all heard of Bluetooth. It silently connects our gadgets together to enable us to listen to music, share pictures, and talk hands-free on our phones, all without the frustration of dealing with dozens of different cords and cables.


But how does Bluetooth Technology actually work and why is it such an important component of modern communication?


This post will provide insight into why Bluetooth has become so much a part of everyday life.


What is Bluetooth Technology?



Bluetooth Technology is a wireless communication system designed for data transfer over short distances via radio waves.


When Bluetooth-enabled products are in close proximity they connect or pair, which allows the user to share voice, data, music, photos, videos and other information wirelessly between the devices.


What is the history of Bluetooth?



Created by Ericsson in 1994, Bluetooth Technology was originally conceived as a wireless alternative to RS-232 data cables. It was created as an open standard to allow collaboration and connectivity between different products and industries.


In 1998, Ericsson, Intel, Nokia, Toshiba and IBM came together to form the Bluetooth Special Interest Group (SIG). The SIG member companies now work together to further Bluetooth technology as a means to bring more devices into the connected world.


Ready to get technical?  




A product with Bluetooth technology has a tiny computer chip inside that contains the Bluetooth radio and the necessary software to connect products via radio waves.


Two devices connect with each other based on a unique address within their respective signals. The software inside Bluetooth interprets incoming Bluetooth signals and sends outgoing waves to other connected devices.


Bluetooth operates in the unlicensed industrial, scientific, and medical (ISM) band and communicates at a frequency of 2.4 to 2.485 gigahertz.  




These low-energy signals that Bluetooth emits help to lessen the chance of interference by other devices like baby monitors or computers on similar frequencies.


Why is Bluetooth useful?




Bluetooth Technology eliminates the use of cords, cables, and adapters, thus permitting  electronic devices to communicate wirelessly with each other.


Bluetooth is revolutionary because it is inexpensive, automatic, and does not require line of sight between the communicating devices.


It comes equipped with built-in security, and in almost all cases, Bluetooth users can establish “trusted devices” that can exchange data without requesting permission.



Bluetooth Technology is changing how people are thinking about wireless data transfer and is helping companies develop creative solutions that make the consumer's life easier.


How does Bluetooth work with TrackR?  


TrackR uses Bluetooth Low Energy, which consumes 50 times less power than Bluetooth Classic, to power its devices. Bluetooth Low Energy enables TrackR to have a full 1 year battery life in a very small device.


Don’t let the name “Low Energy” fool you. The range of connectivity for Bluetooth Low Energy is up to 100ft, and the TrackR devices offer multiple features that may be utilized within this range, including the 2-way ring feature and last known location feature.


Thanks to Bluetooth Low Energy, TrackR devices can help you efficiently track your items and keep your life organized.


What do you use Bluetooth for most frequently? Still have questions about how it works? Let us know!


Check back soon for more blog posts!


- Jeremy






About the Author

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Jeremy Fish

Jeremy works at TrackR in the Marketing Department, and helps TrackR products reach the masses. Jeremy loves helping make people happy through new experiences & technology.