... 1. 4-CH real-time recording 2. 1TB Hard disk 3. 2-ch audio input,1-ch audio ... Features:1. Supporting 4 way real-time recording, with three solutions (CIF, HD1, D1). Also support 2-ch ... , manual recording, etc. for freely optional.4. 1TB Hard disk for storing video files.5. Compact design, waterproof and dustproof ... AccessoryQVB-724108SExtension cable, camera 4-CH 1TB Hard Disk H. 264 9-36V Car DVR