Where is Bluetooth on the electromagnetic spectrum

Wireless LAN protocols, such as Bluetooth and the IEEE 802.11 specifications used for Wi-Fi, also use microwaves in the 2.4 GHz ISM band , although 802.11a uses ISM band and U-NII frequencies in the 5 GHz range.

Devices connected in a Bluetooth network communicate with each other using ultra-high frequency (UHF) radio waves . These are electromagnetic waves with frequencies around 2.4 gigahertz (2.4 billion waves per second). UHF waves of different frequencies are used in microwave ovens, GPS systems and many other devices.

Bluetooth uses short-wavelength UHF radio waves of a frequency range between 2.4 and 2.485 GHz . Bluetooth enables one to create a personal area network wherein multiple devices talk to each other wirelessly via Bluetooth—a typical usage is home control automation systems.