KingNeed 2 g Magnet Portable SPY GPS Tracker 720Working Days Long Battery Life/ IPX7 Waterproof/GSM Home Alarm/for Personal and Car Vehicles 2 in 1 GPS Tracker + GSM Alarm Maximum 720 days working time with 20000mAh Lithium-Polymer battery No installation needed, easy attach to any iron surface with Strong Magnets, even under the car just a second Drop-trigger alert with immediate notice if someone find out and take off the device from the iron surface GSM home alarm and IPX7 Water-proof with IOS & Android App and PC website support