What technology provides a short range wireless connection that typically reaches 30 feet?

Bluetooth technology is designed for short-range wireless communication, typically covering distances up to 30 feet. This makes it ideal for connecting devices such as phones, headphones, and wearables in close proximity. Bluetooth operates on the 2.4 GHz frequency band and is characterized by its ability to create secure connections quickly and with low power consumption.

Wi-Fi, while also a wireless technology, has a much longer range—usually extending several hundred feet indoors and even farther outdoors. Ethernet is a wired networking technology, not wireless, and typically connects devices over much longer distances using cables. Infrared technology can also provide short-range connectivity, but its effective range varies and is often limited to line-of-sight connections, making it less versatile compared to Bluetooth.

In summary, Bluetooth is specifically tailored for short-range, low-power connections, making it the correct answer for this question.