The Liview 4-Channel Full D1 Waterproof P2P DVR Kit with 4pcs 1/3.7" Color CMOS 600TVL Bullet Cameras tells you what&acute;s happening during 24 hours, giving you peace of mind. It provides everything you need to turn your existing PC into a powerful surveillance system, including a DVR,4 bullet cameras and full accessories. The security cameras use 1/3.7" high-grade color CMOS sensor to provide clear and sharp images with 600 TV lines. Equipped with12 infrared LEDs, it is capable of night vision recording at a distance up to 25 meters. In addition, the DVR supports P2P function for wireless connection. You can rest assured to rely on it!                                    Features            Turn your existing PC into a powerful surveillance systemOutstanding waterproof performanceCapable of monitoring and recording videoSupport wireless connection with P2P functionAdvanced digital video compression technology1/3.7" high-grade color CMOS sensorHigh image quality, high video performance12infrared LEDs, up to 25 meters night vision distanceSolid aluminum alloy casing, reliable and durableCompact design, easy installation and setupCome with full accessoriesBest Match: The D1 DVR with 600TVL Cameras Since D1′s horizontal resolution is 720 x 480, you′re going to get the best bang for your buck from a 600 TVL camera or better (a 600 TVL camera has an effective resolution of 728 x 492). Crisp &amp; detailed full-color video you can rely on With High-resolution video technology, you can keep a continuous eye out for thieves, vandals, break-ins, or any other suspicious activity. View Your home or business from anywhere Whether monitoring your business or home, view your footage live online, anytime and anywhere with PC, or view footage onalmost any smartphone, including iPhone, iPad, or Android. Get Instant email alerts if motion detected Instantly know if suspicious activity is happening on your property by an instant email alert, complete with photo.Keep any eye on things, even in the dark 24infrared LEDs provide crisp and detailed night imagery as you monitor from up to 80ft away, even in complete darkness. Working restless no matter it rains or snows     No Hard drive included in the DVR     <br>
The all metal weatherproof housing ensures optimal picture quality no matter whatever weather will be, rain, hail or snow.    You will need an internal SATA hard drive to record video.Without a hard drive, you can only watch live video.Please be noted about this.    <br>
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                                                            Specifications            DVR     <br>
Model    4CH H.264 StandAlone DVR with P2P function    <br>
Video Compression Format    H.264    <br>
Video System    NTSC / PAL    <br>
GUI OSD    YES    <br>
Video Input(BNC)    4CH BNC input(composite video signal 1Vp-p 75Ω BNC)    <br>
Video Output(BNC)    1CH BNC output    <br>
Audio Input/Output    1CH audio input,1CH audio output(RCA)    <br>
Maximum Recording Rate    D1:704 x 480 pixels with 120 IPS (NTSC) / 704 x 576 pixels with 100 IPS (PAL)<br>
HD1:704 x 240 pixels with 120 IPS (NTSC) / 704 x 288 pixels with 100 IPS (PAL)<br>
CIF:352 x 240 pixels with 120 IPS (NTSC) / 352 x 288 pixels with 100 IPS (PAL)<br>
QCIF:176×120 pixels with 120 IPS (NTSC) / 176 x 144 pixels with 100 IPS (PAL)    <br>
Image Quality Setting    Supper Best, Well, Good, Medium, Normal and Bad    <br>
Hard Disk Storage    Support 1 SATA HDD, max capacity is 2TB / pcs (HDD is not included)    <br>
Multiplex Operation    Live Display / Record / Playback / Backup / Network Transmit    <br>
Recording Mode    Manual / Timer / Motion    <br>
Playback Mode    Multiple slow and rapid play speeds, manual and single-frame play modes, and support of drag the sliding bar to set.    <br>
Backup Device    USB Flash Drive, USB Hard Disk, USB and Network Backup    <br>
Pre-alarm Recording    Recording for 10 seconds before alarming    <br>
Network Protocol    TCP / IP,PPPOE ,DDNS and NTP, ARSP    <br>
Ethernet Remote View    Support remote surveillance up to 10 users simultaneously    <br>
CMS Software    YES    <br>
Mobilephone View    YES    <br>
Electronic Zoom    YES    <br>
VGA Interface    YES    <br>
Log Record Function    YES    <br>
Image Tour    YES    <br>
Video Loss Detection    YES    <br>
Video Adjustable    Hue / Saturation / Contrast / Brightness adjust    <br>
PTZ Control    YES    <br>
USB Mouse    YES    <br>
Power Source    DC 12V    <br>
Key Lock(Password Protection)    YES    <br>
Power-down Recovery Function    YES    <br>
Dimensions    (10.23 x 9.21 x 1.77)"/ (26 x 23.4 x 4.5)cm    <br>
Color    Black    <br>
Material    Metal    <br>
Camera     <br>
Model    600TVL Outdoor / Indoor Camera    <br>
Image Sensor    1/3.7"Color CMOS    <br>
TV System    NTSC    <br>
Lens    3.6mm    <br>
Scanning System    2:1 Interlace    <br>
Infrared Irradiation Distance    12Ultra Strong Infrared LEDs- Visible up to 80 ft (20-25m)    <br>
Minimum Illumination    0 Lux (IR On)    <br>
Horizontal Resolution    600 TV-Lines    <br>
Synchronization System    Internal Synchronization    <br>
S/N Ratio    &gt; 48dB    <br>
Gamma    0.45    <br>
Auto Gain Control    Built in    <br>
Weatherproof    Yes    <br>
Vandalproof    Yes    <br>
Operation Temperature    14°F~122°F / -10℃ ~50℃    <br>
Power    12V DC    <br>
Power Consumption    460mA    <br>
Back Light Compensation    Auto    <br>
Video Out    1.0V p-p 75O BNC Connector    <br>
Auto Iris    Video / DC    <br>
Dimensions    (3.3 x 4.3 x 4.3)" / (8.38 x 10.92 x 10.92)cm (L x W x H)    <br>
Material    Aluminum Alloy    <br>
Color    Black    <br>
Total Weight    141.1oz / 4000g    <br>
                                                            Package Includes            1 x DVR4 x Security Cameras4 x Surveillance Video + Power All-in-one Cables2 x Power Adapters1 x 1-4 Splitter Cable for Security Camera1 x IR Remote Control1 x Mouse4 x Screw Suits