Comelit HFX-7004M Manuel Technique page 3

Thank you for purchasing the Hands-Free Kit HFX-7004M!
This intercom system uses 2-wire installation and allows you to identify and
communicate with callers at the door, from the security and convenience of any
room in your home or office.
Visitors activate the system by pressing a call pad on the external unit, which
sounds a doorbell chime as well as turning on the inside "hands free video monitor".
A two-way intercom then lets you speak with visitors after first visually identifying
them.
The kit consists of 4 hands free monitor stations and an external unit.
This kit is capable of expanding up to a total of 4 external units.
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