specification: Colour: Black Material: plastic box Positioning method: GPS AGPS Network standard: GSM / GPRS GSM frequency: 850/900/1800/1900 Mhz GSM antenna: integrated antenna GPS sensitivity: -159dBm GPS antenna: built-in antenna high gain Operating voltage / current: DC 9-38 V Application environment: -2 ° C -70 ° C Working humidity: -80% RH Positioning accuracy: 5-10 meters 100% brand new, high quality. Global quad-band GSM system. Real-time location tracking, tracking playback. Support SMS and GPRS platform tracking. This GPS tracker is a great tool for tracking your car or motorcycle in real time. With it, you no longer have to worry about stolen cars. You can track your car in real time using your phone.