The ATUC-50DU has a 3-pin XLRF-type input for use with ATUC-M43H, ATUC-M58H and ATUC-M32L microphones. Includes a talk/request-to-talk button, channel/volume display, channel selection buttons, built-in speaker, 3.5 mm (1/8") headphone jack with volume control, two LED indicators, and two RJ-45 ports for daisy-chaining DU/IU/INTs. Designed for tabletop or recessed mounting. For wired or wireless systems.

• Connect up to 100  discussion units to one control unit
• Cascade up to 300 discussion units using multiple control units
• High-quality speaker for enhanced intelligibility
• Clear LED display for volume control and channel selection
• Individual Automated Gain Control (AGC), Mic gain and Mic EQ
• Multicolour LED bar on the DU (rear side)
• Multicolour LED on the Speak button
• Uses standard Cat 5 (and above) cabling
• Connects easily through a daisy chain or ring topology