A multi-band device is a device that can operate on multiple frequency bands. Synonyms for this term include multi-frequency device, multi-banded device, and multi-spectrum device. Such devices can receive or transmit signals on various radio frequencies, thus ensuring better connectivity. They may also be referred to as multi-band radios, multi-band transceivers or multi-mode radios. The range of frequencies that a multi-band device can operate on may vary, and often depends on the device's intended use. Regardless of the terminology used, these devices are essential for ensuring reliable communication in a variety of settings and contexts, from emergency services to military operations.