wireless usb dvr video capture card 1.Night vision range:>5M 2.Four channels 2.4GHz 3.Support for MSN and Skype 4.Wireless wireless usb dvr video capture card Wireless USB DVR, the security monitoring systems for ordinary occasions, such as home, office, store, or baby monitoring. Using a wireless USB DVR, your computer will become an powerful surveillance system. Users can be very easily to ...