Description The Dahua DHI-VTH2421FB-P is a 7-inch IP video monitor designed for indoor video intercom systems. It features a capacitive TFT display with a 1024×600-pixel resolution and supports both PoE 802.3af and 12 V DC power inputs. The unit integrates a microphone and a 1.5 W speaker for bidirectional communication and accepts six alarm inputs and one output. Onboard storage includes 8 GB internal memory with microSD expansion up to 32 GB and H.264 video plus g.711a/u and PCM audio compression. Key Features - 7-inch capacitive TFT touchscreen - 1024×600 resolution - Supports PoE 802.3af and 12 V DC power - Built-in 8 GB memory, expandable up to 32 GB via microSD - 6 alarm inputs and 1 alarm output - Integrated microphone and 1.5 W speaker Specifications Brand: Dahua Model Number: DHI-VTH2421FB-P Color: Black Power Source: 12 V DC, PoE 802.3af Memory (GB): 8 Display Resolution: 1024×600 Touchscreen: true Video Compression: H.264 Audio Compression: g.711a/g.711u/PCM Alarm Inputs: 6 Alarm Outputs: 1 Microphone Channel: 1 Speaker Power W: 1.5 Max Storage Micro Sd Gb: 32