**Which wireless technology is primarily used for short-range communication?**
Bluetooth is the wireless technology primarily used for short-range communication. It allows devices such as smartphones, headphones, and computers to connect and exchange data wirelessly within a range of approximately 30 feet (10 meters). Bluetooth operates in the 2.4 GHz frequency range and is designed for low-power consumption, making it ideal for connecting accessories and enabling various applications, such as hands-free calling and device synchronization. Its widespread adoption across devices has made it a standard for short-range wireless communication.