NVR Hikvision IP 16 canale DS-7616NI-K2; UltraHD 4K; Support 1-ch HDMI ,1-ch VGA, HMDI at up to 4K(3840x2160) resolution; IP video input:; 16-ch; Two-way audio input: 1-ch, RCA (2.0 Vp-p ,1kI );Incomin