1.Mini 3G Mobile DVR, 4 channel, GPS, 3G,WIFI 2.H.264 ,VOICE Talking 3.Sending alarm sms to Mobile phone Model: ... X, Y, Z axis3G,WIFI Wireless transmissionBuilt-in wireless module optional. Such as 3G EVDO, HSPA, HSDPA, WCDMA…GPRS, EDGEPlaybackSystemVideo ... 10 to 15 seconds after the outside power offSecurityPasswordUser and Admin, 2 levels password managementWorking EnvironmentTemperature-20 to + ...