Features
• Duplex intercommunication, easy for operation.
• Four-way conversation: Each interphone could communicate with the other three interphones.
• Confidential communication: When two interphones are talking, the busy sound will be heard from the otiose interphones.
• Working distance is around 300m.
• The talking voice is very clear without noise.
• Enclosed one adapter
• Four-wire connection
• DIY installation |
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