The ATUC-50INT has a 3-pin XLRF-type input for use with ATUC-M43H or ATUC-M58H microphones. Includes a talk button, volume/channel/language group display, channel selection buttons, A/B interpretation languages selection buttons, built-in speaker, 3.5 mm (¨û") headphone jack with volume control, two LED indicators, and two RJ45 ports. Designed for tabletop or recessed mounting.