Special Features
Human Motion Tracking, NIGHT VISION, Vandal-proof, Waterproof / Weatherproof, Built-in Siren, One-way Audio
Function
Two-way Audio, RESET, Built-in Mic, NIGHT VISION, Waterproof / Weatherproof, Vandal-proof
Customized support
Online technical support, Customized logo, Software reengineering, OEM, ODM