Dahua Imou NVR1108HS-W-S2 has 8-channels and a two-way speak real-time communication system. Imou app helps to monitor at any time and from anywhere, and it features a smart H.265 Codec that saves more high-quality video in less space. It can connect within 120 seconds after booting, and self-adapting cameras can cascade connections to increase Wi-Fi range.