Wire Intercom System Function, Intercom System Doorbell with Unlock Function

Support answering, monitoring and unlock, dual-way intercom Mute door intercom with doorbell kits, Easy installation, Surface mounting. can be used in apartments, villas, hotels, offices, public buildings.

Features:
- Two-way intercom, one-way call and blocking function
- Two-wire connection
- With a new ABS plastic
- Excellent consumer side of the tone circuit, intercom voice clarity
- Effective distance of 300 meters above the intercom
- Easy installation easy to use

What's in the box
1 x Intercom System
1 x user book