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ADVISION, Intercom AD-101A, the best security device ever, which helps you protect your real estate, home or organization with more than one modern anti-oxidation intercom system and technology, which performs multiple tasks from an external telephone unit as well as an aluminum soundproof door, DIY audio door phone.

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.