Details *Features*: Helps tracks the old,kids,pets,or valuable items like aircraft model Locates by texting that includes whereabouts and a link to map plus battery level Allows phone number authorization Emergent SOS function with a simple button Monitors the surroundings by sending back the sounds within range Option to automatically recall the authorized number when it detects a 45dB sound within range Able to work with app for more convenient uses Charges via included USB cable *Specifications*: Charging input: AC 100-220V 50/60 Hz Charging output: 5V 500mA Connection: GSM/GPRS GSM Frequency: 850/900/1800/1900Mhz Detection range: 10 meters/98 feet System compatibility: Android and IOS Battery: 3.7V 500mAh rechargeable li-ion battery Size: 3.1×4.2×1.2 cm/1.22'×1.65'×0.47' (L×W×H) Weight: 17g/0.6oz *Package Lists*: 1×Real Time Portable Mini GMS/GPS/GPRS Tracker 1×USB Charging Cable 1×User Manual View detailed description View detailed description View detailed description