... DVR CCTV DVRStandalone DVRRealtime DVR Network DVR with Blackberry /Iphone ViewingMain features : H.264 Compression •. 4 Channel Standalone DVR ... 3G/2.5G/2.75G Net •. Supports 1pcs 1000G SATA HDD , 2 pcs ... settings , PTZ control •. Support for USB mouse , USB data export , remote control ...Language ... LINE 60 fieldsAudio Input4 channel audio input, 600Ω,BNCAudio Output1 channel audio output, 600Ω,BNCBasic ...