Mini size Wireless Video transmission Outdoor Water-proof day/night Motion Detection Surveillance system built in 2GB SD Card w/hard disk recording Wireless Video transmission for home/business surveillance;Provide image/video compression and storage;Motion detect and hard disk recording;Weather-proof day/night camera for all-day usage;Mini size camera for observation and portablility;Adapted to TV, monitor, palm LCD, etc.4 channels optional to avoid possible interference;Up to 100m (330ft.) Transmission range in open space. GENERAL:Transmission Frequency 	ISM 2,400~2,483 MHz;Operating Temperature :-10C~+50 CAMERA:Picture Total Pixels:PAL:628582 Pixels;NTSC: 510492 Pixels;Horizontal View Angle :PAL:60 NTSC:40Night Vision range:7m;BandWidth :18M;Power Supply :DC +8V;Dimensions(WDH):457883(mm) ;Weight :217g RECEIVER :Antenna :50 ohm SMA;Storage Media:SD Card;Storage Monitoring videos :3-6 days by 2G;Storage Monitoring pictures:15 days by 2G;SD Card Usable Capacity :32M-2G(1G~2G recommended);Dimensions(WDH) :8013118(mm);Weight:178g Attention: The operating frequency of our product is 2414MHz, 2432MHz, 2450MHz and 2468MHz. You could adjust the channel switch to set the channel of camera for multi-camera working or avoiding the interference. Please make sure you are NOT using other wireless equipment in the frequency you select. It will be badly interfered with each other that in the same frequency. Autual transmission range may vary according to weather, location, interference and building construction.