... , GPS, 3G,WIFI 2.H.264 ,VOICE Talking 3.Sending alarm sms to Mobile phone Model:M603Featuresl H.264 main profile ... -vibrationl Remote voice communication to driver, Remote messages,Over speed alarml Remote PTZ controll Wide range oprerating temperature, -20°C to +70°Cl ... download remotely via 3g or WIFI ,VOIP ,to send SMS alarm infomation to Mobile phone optional ,to send message to LED ...