The technology used to connect devices over short distances while exchanging data is Bluetooth. It enables the transfer of files and connecting peripherals like headphones, keyboards, and smartwatches without the need for physical cables. Bluetooth operates on short-range frequencies and is designed for low power consumption, making it ideal for portable devices. With continuous advancements, Bluetooth has improved in terms of speed and range, allowing seamless connections for various applications, such as smart home devices and health monitoring equipment without cumbersome wiring.