4-CH Embedded Digital Video Recorder Kit (1 3 Sony CCD, 520TVL, 24 x IR LED, 6mm Lens, IR Distance: 25m, H.264 (8204EV+622A) Technical Parameters 1) Main specifications features: Specific description 2) Operating system: LINUX OS 3) Video compression format: Main profile H.264 4) Video input: 4 channels BNC 5) Video output: 1 channel BNC 6) Audio input: 4 channels RCA 7) Audio output: 1 channels RCA 8) Display: 19 channel 9) Multiplex operation: Live display, recording, network transmission, recording, backup, mobile phone surveillance simultaneously 10) Display resolution: PAL D1 (704 x 576), NTSC D1 (704 x 480) 11) Recording mode: Timer manual motion detection alarm 12) Recording frame rate: PAL 25fps, NTSC 30fps 13) Recording quality: High, normal, low 14) Recording resolution: CIF Half-D1 D1 15) Recording playback: 4 channel playback simultaneously (optional playback channel), Support remote file playback, rapid play by times (Fast Backward) Play by frame etc 16) Recording backup: Support USB disk backup, moved hard disk backup, network backup, backup by files, backup by time 17) Network transmission: 4 channels Real-time network transmission with CIF resolution 18) Recording display: Special player, support AVI file format conversion 19) JPEG capture function: Support, 3M Pixels@10fps 20) Email alarm: Send pictures to the designated Email 21) Support PTZ 22) PTZ protocol: PELCO-D, PELCO-P 23) HDD: Support 1 SATA HDD, capacity to 2TB (HDD is not included) 24) Support HDD remain time hint 25) Network and protocol: 1 RJ-45 10 100M via Ethernet, support TCP IP, DHCP, UPNP, DNS, DDNS, NTP etc 26) Support IE browser 27) Support Client software 28) Dual stream: Support (main and secondary interchange) 29) Group play: At least support five users online access 30) Support multi-language 31) Mobile phone surveillance: Support Windows,