1)Built-in GPS module
2)3G transmission function (WCDMA/EVDO)
3)4 Channel video and audio recording (1 / 2 CH optional)
4)Advanced H.264 high profile technology for video compression at lower bitrate.
5)Video format: 1 D1 (25fps) + 3 CIF(25fps)
6)Motion detection / timer switch / alarm recording
7)Data Storage: Max support 1TB SATA HDD,  64GB SD Card and USB port