VTH · 7" TFT capacitive touch screen, 1024 × 600. · Wi-Fi. · H.264 video decoding.Connects to analog and digital VTOs, and analog and digital VTHs. · Connects to IPCs. · Features group call.Supports recording videos and capturing snapshots (SD card is required). · 6-channel alarm input and 1-channel alarm output. · Supports app management, receiving calls and alarm messages, and monitoring and opening the door. · Standard PoE. · Surface mount. VTO · Unlock, voice call, video call and volume adjustment. · Multiple bell sounds. · Supports digital wide dynamic range (DWDR). · Mechanical button. · IP66.