DESC: 4XEM's full function Wireless PTZ IP Network Camera features a 1/4" CCD Image Sensor, MPEG4 or MJPEG video compression, Generic I/O Ports (1 input, 1 output), a sensitive microphone, Pan/Tilt movement and 10x Optical Zoom. Connections are also available for an external microphone and for audio output, enabling two-way audio communication. The Wireless PTZ IP Network Camera is ideal for demanding applications that require connection to external alarms, two-way audio and Pan/Tilt/Zoom functionality for surveillance areas that are larger than the viewing span of one stationary IP camera.