TVST TR series are standard 4 CH 1080P high resolution hybrid DVRs with ability to connect analog, AHD and IP cameras simultaneously, which adopt the standard high profile compression format and the most advanced SOC technique to ensure recording in each channel and realize outstanding robustness of the system. It support 4 CH video input, 4 CH audio input, simultaneous 4 CH playback. The series of product can meet different security requirements of home, financial, commerce, enterprise, transportation and government, etc.