Specification
- 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