Bluetooth wireless technology uses the unlicensed 2.4GHz band, which can be used by many other types of devices such as cordless phones and microwave ovens. Any device designed for use in an unlicensed band should be designed for robustness in the presence of interference, and the Bluetooth wireless technology has many features, including Adaptive Frequency Hopping (AFH), to provide the robustness needed to operate in a crowded radio environment. Bluetooth technology's ability to detect and avoid in-band interference gives it a strong advantage over other short-range wireless technologies that lack this capability.

KB0010167