... made for traffic safety, it is an embedded Linux system DVR with 4 channels. It has high-intelligentization and stability with an embedded ... of Mobile,Steamship,Train,etc. Feature:· Embedded Linux system· MPEG2/MPEG4 processors,Double MCU control· Chinese/English menu optional Technical parameter ... (PAL),PWL:1.0Vp-p,Impedance:75ΩAudio input: 2 channels, Linearity PWL:1.0-2.2vp-p , Impedance: 600ΩAudio ...