Saful TS-YP803 7-inch TFT LCD wired video door phone With calls, monitor, intercom, unlock, hands- ... between the indoor units. Don’t disturb functions 1.7-inch TFT LCD, no radiation, low power consumption, high-definition widescreen images. ultra ... for the installation 1 x cat4 cable 1 x User manual the box size: 285mm * 188mm * 123mm