The useful idea
- The useful idea
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).
- How it works
In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to 10 metres (33 ft).
- Why it matters
It employs UHF radio waves in the ISM bands, from 2.402 GHz to 2.48 GHz.
Why this matters
Use Bluetooth as a lens when judging what a digital tool can — and cannot — do.
Try this
Use Bluetooth as a lens when judging what a digital tool can — and cannot — do.
Test your recall
Which idea belongs to the explanation of Bluetooth?
- Why it matters
- How it works
- The useful idea — correct
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).