Special Features
Human Motion Tracking, Face detection, NIGHT VISION, Two-way Audio, Low Power
Function
Two-way Audio, Alarm I/O, Built-in Mic, NIGHT VISION, Waterproof / Weatherproof, One-way Audio, Built-in Siren, NIGHT VISION, Waterproof / Weatherproof, Smart Illumination, Digital Defog, HLC, BLC