The four-channel GV-Compact DVR V3 is a mobile video recorder, simultaneously displaying real-time images from four cameras. The recording frame rate of each channel is adjustable up to 30 / 25 fps per channel at the resolution of 704 x 480 (NTSC) / 704 x 576 (PAL). The dual-stream design allows you to set up two different codec and resolutions for a single video transmission. In a limited bandwidth network, you can enable the dual streams to lower the resolution and codec for live images, but still get the highest recording quality and smallest file size compressed with H.264 codec.The Anti-Vibration ACC model of the GV-Compact DVR V3 has already been tested to withstand severe levels of shock and vibration in mobile environments. It is perfect to be installed in any vehicles, such as buses and vans, for surveillance and recording. The special design of the GV-Compact DVR V3 enables you to link up with TV, VGA and spot monitors simultaneously for direct display. The GV-Compact DVR V3 offers many features that you can expect to have.