Type:Gps Tracker Use:Tracking kids /person /outside Equipment,Fleet Management. Screen Size:no screen Function:GPS/GSM ID tracking,movement/geo fence alarm Warranty:2 Years color:black GPS Chip:SIRF III chip GSM/GPRS Module:SIM900 GPS Sensitivity:-159 dBM Battery:Chargeable changeable 3.7V 800mAh Li-ion battery Network:GSM / GPRS Memory:2G Weight:50g GPS accuracy:5M GSM Frequency:850 / 900 / 1800 / 1900 Show More