... DVR System/CCTV Camera kit Features: DVR- Operating system: Embedded Linux- Video standards: PAL/NTSC- Video compression: H.264- Audio compression: G711- Video input: 4 ... ,IPFilter,PPPOE,DDNS,FTP,Email,UPNP,Alarm Server,ARSP- 2 USB interfaces, one for mouse,one for backup- Interface: Video ... security etc.Accessories: - 1 x 4 channels DVR- 1 x 100~240V power adapter - 1 x USB mouse - 1 x Remote control- ...