Features: Four wireless input channels with video and audio, one direct output channel Up to maximum 30 fps of high-quality service to multiple users Four channels GPIO enables external trigger and motion alarm output Motion detection supports uploading images to ftp and email View with browsers no special software required Remote record and snapshot control on web page Supports two channels USB ports RS485 PAN/TILT/ZOOM control Technical specifications: Compression standard M-JPEG standard Image resolution PAL: D1(704 x 576)/CIF(352 x 288)/QCIF (176 x 144) NTSC: VGA (640 x 480)/QVGA(320 x 240)/QQVGA(160 x 120) Image transfer velocity PAL: 1-25 frame/s, NTSC:1-3 frame/s USB ports two channels USB 2.0port, max saving space is 200 to 300G Video input (wireless) wireless 2.4GHz four routes, it could be switched channels by remote control this end, and also can be switched far-forth end by software Video output (this end) one route Audio one route listen in, PCM coding, audio input four routes Recording standard AVI PTZ control communicate plug RS485 Network plugs RJ-45/10-100 Base T Network agreement TCP/IP, FTP, SMPT, HTTP, ICMP and PPPoE Motion detection user could set alarm area and sensibility software upgrade upgrade automatically Monitor mode IE browser Return mode Microsoft media player Security right of password setting: administer, monitor and scrutiny Working condition 0 - 50°C,20% - 80%PH Power adapter INPUT:100 - 240VAC,50/60Hz,OUTPUT:5VDC/2A Power (camera): 5W Size: 205 x 130 x 47mm