Audio module (new version) for Alba entry door station line. It provides voice prompt function, multi-language, which you can activate and manage via Bluetooth. It includes electric door speaker and it is ready for the mounting of 1 or 2 buttons (art AB20 or AB21) up to 4 calls if programmed in double call way. To be completed with article AB20 or AB21. It works with Duo Systems for installations up to 20.000 users and 250 m as max distance between door station and internal station. It is self powered with automatic address learning.

Microphone extremely protected against external atmosphere agents, implemented microchip in audio section with marked improvement of the audio performance. Name tags made in resistant material.