Asset Tracker is a portable tracker which integrates GSM and GPS technologies. Its main functions are including geo-fence/vibration alarm by manual or remote control/avoid static drifting and so on. JT-300 is waterproof. It has a high intense magnet in its rear cover which can absorb on iron surface including the bottom of the vehicle. You can go to track the device location through software platform or by sms command. JT-300 can be used in the field of logistics/ rent/ financial/ detective/ police and so on. Key Features: Geo-Fence Vibration Alarm Voice Monitoring Waterproof Sos emergancy Alarm Battery With Large Capacity With High Intense Magnet In Its Rear Cover Power-Saving Mode And Avoid Static Drifting Specification: GSM MTK6223D GSM 850/ 900/ 1800/ 1900 MHz GSM antenna Quad band GPRS Class12 GPS SiRF Star III / LT or u-blox 6 GPS Channels 20 Tracking sensitivity- 159dBm/ - 160dBm Aquisition sensitivity - 144dBm/ - 147dBm Locating time cost Hot start : <1 sec (open sky) Warm start : 35 sec on average Cold start : 35 sec on average (open sky) GPS antenna Built-in high sensitive Omni antenna LED indicators three LED indicators : GPS-blue GSM-green Power-red Button SOS button Battery 3.7vDC/ 2600mAh Weight 100g Dimension 91.5 (L) × 57.0 (W) × 23.0 (H) mm Features: GPS+GSM+GPRS Built-in high sensitive GPS chip Backup battery with 2600mAh capacity, Super long standby time (Up to 40 days) SOS emergency alarm Geo-fence function Voice monitoring Get location via SMS and GPRS(TCP) Real-time tracking, uploading location Built-in accelerate sensor With high intense magnet in its rear Cover, can absorb on any iron surface. Three LED indicators Platform location service Additional Information: Item Code: JT-300