TKSTAR 10000mAh Long Life Battery Standby 120Days Car GPS tracker Vehicle tracker TK915 Waterproof Strong Magnet Motorcycle GPS Locator Note :Our TK915 can only work with 2G GSM network. It does not support 3G,4G Or 5G network. If your 3G, 4G SIM Card can also support 2G network, then it is ok. Specification: * Dim:112 * 77mm * 27mm (4.41"*3.03"*1.06") * Weight: 300g * Network:GSM/GPRS * Band:850/900/1800/1900Mhz * GPS sensitivity:-159dBm * GPS accuracy:5m * Wall charger:110-220V input 5V-1A output * Battery:Chargeable 3.7V 10000mAh Li-ion battery * Stand by:120days * Storage Temp.:-40°C to +85°C * Operation Temp.:-20°C to +55°C * Humidit:5%--95% non-condensing Product Features 1. Long Standby Time: It has built-in 3.7V 10000mAh Li-ion battery, can standby up to 120 days. 2. Powerful Magnetic: It has 6pcs built-in magnets,with super strong powerful magnetic,can be very easily installed. 3. Remotely Voice Monitor: Send "Monitor+Password" to the device first, then the device will turn into monitor mode, now if you make call to the SIM number in the device, it will pick up your call automatically and you will can monitor the voice around the device! 4. Overspeed Alarm: This alarm works only under continuous positioning mode.When the unit speed is exceed the speed you presetted, it will send message "speed alarm!" to the admin number every 5 minutes. 5. Shake Alarm: After you did the shake alarm setting,please keep the tracker being stationary for 5 minutes, then this function will start working. It will send SMS "sensor alarm!" to the admin number when the unit get shocked. 6. Sleep Mode: * Sleep by time mode: After did this setting, tracker will only work for 5 minutes after being waked up, and back to sleep mode, GPS will shut off and GSM will works in low consumption mode. SMS, call will can wake up the tracker. * Sleep by shock sensor mode: After did this setting, if no shock for 5 minutes, the tracker will work under "sleep by shock" mode, GPS will shut off, GSM w