... DVR, 120fps 4ch D1 real time DVR, support:network/mobile phone/CMS/PTZ/remote, 1TB HDD, Spanish, Portuguese 4ch ... 3804V D1 High Definition DVR *Mobile phone support I-phone, Black Berry, Andriod, Nokia, Windows Cell*Language: English, Spaninsh, French, ... camera blank, video loss;*Dual encoding streams flexible for network transmission and mobile phone monitoring;*H.264 compression algorithm idea ...