the t.bone Speech 100 C, Presidential Microphone Unit for Digital Conference Systems, Condenser microphone, LCD display, Buttons: Agree, Drop, Disagree, Priority, +/-, Built-in loudspeaker with volume control, Headphone jack, Priority control specially for the presidential microphone unit, 2x LAN (In/Link), Microphone gooseneck length: Approx. 40 cm, Dimensions (W x H x D): 169 x 46 x 175 mm, Weight: 0.7 kg, Includes a 2 m network cable