Network Camera With 1/3-Inch Sony CCD Image Sensor and 420tvl Horizontal Resolution Product DescriptionKey Specifications/Special Features: ... 4, 9, 16, 25, 36 and 64-channel No user limited Centralized monitor, remote record and playback, Skype message alarm, Skype telephone ... visitors at the same time IP mode dynamic IP address, static IP address, PPPOE Others shape box IP camera, outdoor use, ...