What technology is commonly associated with connecting devices in close proximity?

Bluetooth is commonly recognized for its ability to connect devices that are in close proximity to one another, typically within a range of about 30 feet (10 meters). This wireless technology is designed specifically for short-range communication, making it ideal for linking personal devices such as smartphones, headphones, and wearable tech without the need for cables. Bluetooth operates using low power and is often used for tasks such as streaming audio or transferring files between devices, facilitating seamless interaction in everyday scenarios.

Wi-Fi, while also a wireless technology, is geared towards providing internet access over a larger area and usually requires more power compared to Bluetooth. Infrared is another short-range technology, but its use is quite limited in modern contexts, primarily being superseded by Bluetooth and Wi-Fi. Ethernet relies on wired connections and is not suited for proximity connections in the same way that Bluetooth is. Thus, Bluetooth stands out as the technology specifically designed to connect nearby devices efficiently and effectively.