Compatibility: Hikvision IP Video Doorphones ; Shield: 10.1 " IPS - capacitive touch screen ; Resolution: 1024 x 600 ; Internal memory: 8 GB eMMC (built-in) ; Main features: Wi-Fi module - IEEE 802.11 b/g/n, Bidirectional communication, Echo suppression and reduction / digital noise reduction, Automatically capture and save photos if there is no response to the bell button, ; Alarm inputs: 8 ; Power supply: 12 V DC, PoE (802.3af) ;