... DVR, 4 channel, GPS, 3G,WIFI 2.H.264 ,VOICE Talking 3.Sending alarm sms to Mobile phone Model:M604Featuresl H.264 ... dvr.l Built-in GPS, WIFI, G sensor, Gyro sensor optional.2 SD Card ... .Dimensions, 112(W) x36(H) x138(D) mm, Weight ... (2.6)Video CompressionH.264 main profile. ARM9, ... each(default 1 card supported).PowerPower Management1, ... to 80%OthersDimensions112(W) x36(H) x138(D) mmNet Weight450gAccessories ...