From the Manufacturer:
Dahua Technology Co., Ltd. is a provider of video surveillance products and services, with the world's 2nd largest market share, according to a 2015 IMS report.
In addition to its core video surveillance product line— network cameras, NVR, HDCVI cameras and HDCVI HCVRs—Dahua also offers a full range of solutions, from intercoms and alarms, to motion sensors and access control.
Dahua Technology provides video surveillance solutions that are applied in many markets, including banking, public security, energy, telecommunication, intelligent-building and intelligent-transportation.
XVR:
Embedded processor
H.264+/H.264 dual-stream video compression
Support HDCVI/AHD/TVI/CVBS/IP video inputs
Max 6/12/24 channels IP camera inputs, each channel up to 5MP
Max 24/48/96Mbps Incoming Bandwidth
Smart Search and Intelligent Video System
Camera:
1/2.7"""" 2Megapixel CMOS
30fps@1080P
High speed, long distance real-time transmission
Day/Night(ICR), AWB, AGC, BLC, 2D-DNR
3.6mm fixed lens
Max. IR LEDs length 20m, Smart IR
IP66, DC12V