Features 4CH 1280H real-time DVR Up to 120(NTSC) / 100(PAL)fps recording rate HDMI / VGA video output 4CH audio inputs / 1CH audio output Pre-Installed Storage : 500 GB Max. 1 internal HDD PTZ control via coaxial cable (Samsung CCVC, Pelco-C) DVD-RW, Smart phone support (Android / iOS) Smart searching, Tampering support This product delivers professional-grade performance, reliability, and seamless integration for modern security systems.