Clearvision is a leading cctv equipment supplier in the public security industry. They offers digital video recorder. This super view real time digital video recorder 4ch, 8ch, 16 channels, mpeg4 /h.264 compression live 25 fps per camera & backup support, internet access, remote controlled, 4,8 &16 channel audio multi user, i.E. Explorer remote internet viewing, recording time from 15/30/90 days optional. Advanced motion trigger recording. Clearvision digital security systems is famous for the up-dated technology. Cost-effective principle and second-to-none-sales service.