Adaptors are devices used to convert one type of connector into another, enabling compatibility between various pieces of audio equipment. With the variety of connectors in use today, adaptors are necessary for different formats of cables and inputs. Common examples include XLR to TRS, 1/4-inch to RCA, and USB to MIDI adapters. Popular manufacturers include Hosa Technology (cables and adaptors), Neutrik (XLR adaptors), and Radial Engineering (pro audio adaptors). These small but essential tools allow for seamless integration of audio gear in both live sound and recording environments. They enable musicians and audio engineers to connect different systems, ensuring versatility and flexibility in both professional and home studio settings.