15 Jun 2026

Bluetooth

 Bluetooth is suitable for short-distance connections between devices.

Examples

  • Connecting wireless earphones to a smartphone
  • Connecting a smartphone to a car audio system
  • Sending files between nearby devices
  • Connecting a wireless keyboard or mouse
  • Connecting a smartwatch to a smartphone

Pairing Process

Before two Bluetooth devices communicate, they normally need to be paired.

Typical steps:

  1. Enable Bluetooth on both devices.
  2. Search for nearby devices.
  3. Select the correct device name.
  4. Enter or confirm the passkey, if required.
  5. Test the connection.

Advantages and Disadvantages

AdvantagesDisadvantages
No cable is requiredLimited range
Easy to useSecurity risks may arise if settings are not controlled
Suitable for personal devicesNot ideal for very large file transfers
Energy efficient for many applicationsInterference may affect performance

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