Why I recommended: 
it has a IR remote, easier to handle the system.

Other Features:
1.  Immediately getting into the work state  of detect motion object after power
on;
2.  Automatically take photos/record  when detect the motive objects;
3.  If the object is immobile or the object stops moving, Dv650  does not  record
or  stop recording;
4.  128Mb  SD card which can store about 2000 pieces of picture/400 video clips,
without flash memory;
5.  Supporting maximally 2G  SD card,can store about 28800 pieces of picture/4850
video clips;
6.  Memory tenet is "First in, First out", automatically overwrite former images;
7.  Connect 2 cameras, only one camera record ,but with function of PIP;
8.  Supporting all kinds of CCTV cameras(CCD, CMOS);
9.  With ports of outside triggers shooting and motion detect signal trigger output;
10.  Can combine with all kinds of alarm system or visual doorphone system which
form newly shooting alarm system;
11.  The stored pictures/video clips will not lose when power off;
12.  Supporting outputting video signal of NTSC/PAL;
13.  The parameters(Date,time,Detecting area, sensitivity and interval time etc .)can
be reseted by user ,not lose when  power off. 
14.  The recording date as file name, the format of picture is JPEG, and the format
of video is AVI ;
15.  Lookup the photo and video by the record date(time);
16.  Has the simple operation menu, no need to install software;
17.  Support playback the images on TV/monitor, or computer (by SD reader)