ADVISION, Intercom AD-102A, for two family,Talking distance is above 100m ((2X0.8mm2)

ADVISION, Intercom AD-102A, the best security device ever, which helps you protect your home or organization with more than one system and state-of-the-art anti-oxidation intercom technology, which performs multiple tasks from an outdoor telephone unit as well as a durable aluminum soundproof door.