Describe any one of the following: Laser cutting, Bluetooth, Drone. - Leaving Cert Engineering - Question i - 2021

Bluetooth is a wireless technology that allows mobile devices to connect over short distances. It operates as a short-range wireless interconnection for a range of devices, including mobile phones, computers, sound systems, game controllers, printers, and other electronic devices. Bluetooth typically operates in the 2.4 GHz ISM band, using frequency-hopping spread spectrum to minimize interference and improve security. This technology facilitates data transfer and voice communication between devices without the need for wired connections.