This wireless USB DVR allows you to capture video and audio from upto 4x wireless cameras with its 

4-channel 2.4GHz wireless video/audio recording software, 

capture images at 30 frames per second, 

record file format AVI and playback using Windows Media Player, 

USB 2.0 interface, transmission rate up to 480Mpit/s, 

video resolution 720 x 576 @ 30fps, 

image resolution: 1440 x 1152, 

true to life colour display quality, 

powerful menu to enhance the video quality, auto brightness, white balance, colour compensation, contrast, 

advanced digital video control functions, you can also record video and audio from wired cameras using the supplier A / V cable, use this USB DVR to monitor the type of 2.4GHz Wireless Cameras that can be seen on the following web pages:

 Wireless Cameras