Telos 2001-00533-000 Infinity INF-MP-16B 1RU Intercom Master Panel Base VersionThe INF MP 16B 1RU Intercom Master Panel Base Version offers all of the same features as the INF MP 16 but without the rear panel XLR audio inputs, outputs, and GPI O, making it a more cost effective option in applications where local I O and serial logic are not required. Features: 16 multi color display lever keys with additional shift levels at the touch of a button Multi channel duplex voice and contribution audio endpoint 24bit 48kHz IP audio