What wireless technology transmits signals over short distances in a PAN?

Bluetooth is the wireless technology specifically designed to transmit signals over short distances, typically within a Personal Area Network (PAN). It operates within the 2.4 GHz frequency range and is commonly used for connecting devices such as smartphones, tablets, and peripherals like headphones and keyboards. The effective range of Bluetooth is usually around 10 meters (33 feet), making it ideal for personal device connectivity.

Bluetooth's low power consumption also contributes to its popularity in many small, mobile devices, allowing them to communicate without draining the battery too quickly. The technology is well-suited for applications requiring short-range communication, such as file transfers between devices or streaming audio from a phone to a wireless speaker. This focus on short-distance communication is what sets Bluetooth apart from other wireless technologies like Wi-Fi, which covers greater distances, or cellular networks, which are intended for wide-area connectivity.