GPS Function and Global Positioning System bicycle and smallest Gps Tracker

GPS Function and Global Positioning System bicycle and smallest Gps Tracker GPS tracker functions: 1. GPS locating and tracking 2. Check position via SMS / GPRS 3. SOS emergency button 4. Report position by time interval 5. Moving and Over speeding alarm 6. Geo-fence control 7. Remote voice monitoring; 8.Waterproof Specification: Device size 77*37*23mm Weight 50g Package size Band GSM850/900/1800/1900MHZ Battery 760mAh LED indicating light 2.1 Red LED(Power / state) LED state