Multi-band refers to a technology or device that operates across multiple frequency bands. This capability allows for improved communication and data transfer, as it can connect to various networks or channels simultaneously. Multi-band devices are commonly used in wireless communication, such as Wi-Fi, cellular networks, and radios. In the context of audio equipment, multi-band can describe processors that manage different frequency ranges separately. For example, a multi-band equalizer adjusts bass, midrange, and treble frequencies independently, allowing for more precise sound control. This feature enhances audio quality in music production and live sound settings.