Always there. By portable handset.A variation of the classical door entry system. The special extra in this model: the portable handset you won't miss any more visitors. Whether in the garden, in other rooms,… you can use the cordless handset easily take them with you. And if you put it on the base to reset, the battery automatically recharged again.Another Extra: mobile part with double function.Doubly convenient: If the base to an analog telephone socket, you can use the handset as a cordless DECT phone. With many functions: redial, Telephone directory for up to 50 numbers, ten different ring tones in five volumes, hands-free, alarm clock. And you are always informed about visitors: during a phone call at your front door is being rung, this is signalled with a call waiting tone.No installation effort.The elegantly simple intercom is simply mounted by two screws mounted on the wall. Discreet and completely without installation effort. The communication to the inside a portable mobile part is done via radio.Flexible: on request can be expanded at any time.The basic set consists of door intercom, handset and base with mains power supply. The system can be flexibly by means of additional handsets with charging stations can be expanded. So that ring on all mobile parts located in the radio range of the base. And you can even be internal calls. The door intercom with 12 V DC power (not included in the delivery) can also be connected to a door opener. Easy to activate by pressing the button on the handset.This text is machine translated.