Introduction
* Wireless, intercom, take photos, nightvision, remote, 24 hours working
* Dsitance: 20-100M
* Recording: no
* Intercom: yes
* Photos: 100
Inside machine:
* Shell: alloy
* Screen: TFT 7 inch
* DPI: 800*480
* Power: 3A, lithium BJ-5
Outside：
* Viewer: deep-hold cat's eye
* DPI: 0.3 mega pixels
