... USB2.0 for data backup, one USB1.1 for the mouse operation Multi-functional operation, recording, playback, monitor, backup and ... interchange)Multi-languageSupportMobile phone surveillanceSupport Windows,Symbian,IPhone,Blackberry,Android Mouse interfaceUSB1.1Backup interfaceUSB2.0Remote controllerSupportUser authoritySupport multi-level user ... 4CH DVR kit 4 IR cameras H.264 Compression KT 7004AD