Features:★ Internal GSM and GPS antenna motorcycle/Motorbike/Electric Cart GPS Tracker System.★ Location Enquiry and Vehicle Management by Mobile Phone SMS and GPRS Tracking Software (PC software & Internet Explorer Tracking Service)★ Google Link supported★ Time Interval Vehicle Data Feedback setting, to monitor the vehicle in real time.★ Over-speed, Geo-fence alarm, Power Loss alarm to Mobile Phone and GPRS Tracking Software★ History playback, Engine Status, Mileage, Address Report, Direction by PC software and Internet Explorer Tracking service★ Engine fuel and power cut-off by Mobile phone SMS and GPRS Tracking Software.★ Sleep mode: when sleep mode is activated, the GPS Module will be off when engine is off.★ Original motorbike alarm system compatible.★ GPRS Tracking software supported and offered for free★ Client Own platform integration service available★ Distributor platform establishment service available★ OEM/ODM/Customizing Service acceptedExtended Features:★SMS Address Feedback (Optional & No additional cost required)Who need this model most?★Motorcycle/motorbike owners★Electric Cart owners★Motorcycle/ Electric Cart Rental service providers★Mini Vehicle fleet management★Corporate vehicles★Clients in need of complete GPRS function as Mobile phone SMSSpecification: GSM Module: SIM900D Frequency: 850/900/1800/1900Mhz Max RF output : 33.0dBm±2dBm Dynamic input range : -15 ~ -102dBm Frequency stabilities: >2.5ppm RMS Deviation: ≤5degGPS Module: GPS chipset: SIRF Star III Frequency: L1, 1575.42 MHz Channels: 20 Capture time: 0.1 second (on average) Hot boot: 2 second (on average) Warm boot: 38 second (on average) Cold boot: 44 second (on average) Height limit: 18000 m Speed limit: 515 m/sOperating Temperature:-45~65 ℃ Input Voltage: DC9-36Vhttp://www.wynnyeen.com/te_product_a/2011-07-04/1428.chtml