1.Sophisticated Network Function: remote surveillance, remote playback, remote recording, remote control DVR 2.Various recording mode: timer, motion detection, alarm, and watermark 3.Adjustable recording picture quality, resolution & recording frame rate. 4.Flexible Display mode : Auto Switch, PIP, Full Screen, Quad 5.Multi-method searching: Time, Recording event (Alarm, motion detection ), recording list 6.Triplex: monitoring, recording or playback simultaneously. 7.Easy backup: through USB port to Flash memory or DVD-RW, CD-RW to CDs/DVDs 8.Multi-language version: English, Dutch ,German, Spanish...