TRENDnet TV-IP301 Advanced Day/Night Audio Internet Camera Server, Supports CCD image sensor and DC-Iris control and audio monitoring and RS-485 port for pan & tilt Control: Includes I/O ports to trigger alarm and e-mail notification: Built-in Microphone for Audio Monitoring: High quality Motion JPEG and MPEG-4 Video Recording for up to 30 frames per second: Progressive scan, all lines are captured at the same time: Supports 4x digital zoom: Supports video overlay in both graphics and texts: Supports three adjustable motion detection windows with just in time snapshot (TV IP301 TVIP301)