[Wireless Pro, 2.4G WiFi, Expandable 10 Channels 4K NVR] 3MP Wireless PTZ Outdoor Security System BUILD-IN 500GB HDD Color Night Vision

Key item features: Wireless Connectivity: The security system features 4 PTZ cameras that connect wirelessly to a 4K 16-channel NVR, requiring power connections for continuous operation. Advanced Detection: Human detection with motion sensing reduces false alarms by identifying human bodies and shoulders, triggering a loud siren alarm. High-Definition Vision: Equipped with a 3.0MP lens, cameras provide 2560x1440 resolution video, offering clear color night vision with floodlight and infrared night vision up to 50ft. Two-Way Audio: Built-in noise-reduction microphone and speakers enable two-way audio communication, allowing remote interaction via the "Eseecloud" app. NVR Capabilities: The NVR supports up to a 6TB hard drive (not included) for recording and offers multiple recording modes, including manual, scheduled, and motion detection. Remote Access: The system supports remote viewing and playback on Android, iOS, and Windows systems via the EseeCloud client and mobile app.