Type:Gps Tracker Use:Bicycle,motorcycle etc. Function:Real time tracking Warranty:3 Years Name:Bike Tracker GPS305 Network:GPRS GSM GSM Frequenc 1900Mhz GPS Sensitivity:-159dBm GPS Module:SIRF3 chip GPS Accuracy:5m Backup battery:Chargeable 3.7V 700mAh Polymer battery GPS chip:SIRF3 chip Dimension:23.5x110mm Function:Support Location based service (LBS)