Which of the following devices is prone to interference?

Bluetooth devices are indeed prone to interference due to the nature of their wireless communication. They operate in the 2.4 GHz frequency range, which is commonly used not only by Bluetooth but also by other wireless technologies, such as Wi-Fi and microwave ovens. This overlap can lead to signal congestion and potential interference when multiple devices are operating in close proximity.

The susceptibility to interference is a significant characteristic of Bluetooth technology, which can affect the quality and reliability of the connection. Factors such as distance, physical obstructions, and other electronic devices functioning on similar frequencies can result in disrupted connections or degraded performance, making Bluetooth devices notably vulnerable in environments crowded with various wireless communications.