DetailsThis mini GSM/GPRS/GPS tracker is designed to help track the old, kids, pets, valuable items or monitor the surroundings conveniently. All you need to do is to insert a SIM card and send some short commands from your smartphone. You�ll be able to get accurate locations of the tracker and hear the sounds within 10 meters/98 feet of the tracker, plus you�ll get alerted once the sound reaches 45dB when the tracker automatically calls the number you�ve authorized as you like. 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 rangeOption to automatically recall the authorized number when it detects a 45dB sound within rangeAble to work with app for more convenient uses Charges via included USB cableCharging input - AC 100-220V 50/60 HzCharging out