Final answer:
Bluetooth is a network technology that allows wireless communication between devices in close proximity to each other, such as PDAs, laptops, and similar devices.
Step-by-step explanation:
A network of a few meters between wireless devices such as PDAs, laptops, and similar devices can be established using Bluetooth. Bluetooth is a wireless technology that operates in the 2.4-GHz range and is commonly used to connect devices in close proximity to each other. For example, Bluetooth can be used to connect headphones to a smartphone or to connect a laptop to a wireless mouse.