Product Features:Small size and light weight, easy for carry.Black shell, easy to hide, perfect for tracking vehicles, teens, spouses, elderly persons or assets.With two powerful magnets inside, easy to attach to vehicle firmly, no extra installation need.All you need is a working SIM card (NOT included) to insert into the device, then you can track and map (with Google Maps) in real-time over the Internet.Dial SIM card number, then you can hear voice around this tracker, with no light and no noise, you can be monitoring and spy what's going on around the tracker silently and secretly.Product Specification:Type: Magnetic GPS LocatorMaterial: PlasticColor: BlackDimension: 35x20x14mmTalk Time: 150 - 180 minutesWorking Time: 4 - 6 daysExpansion Card: Mini TF cardNetwork: GSM/GPRSGSM Band: 850/900/1800/1900MhzGMS Locating Time: 25 SecondsPower Input: AC 110-220V 50/60HzPower Output: DC5V 300 - 500mABattery Capacity: 3.7V 400mAh Li-ion BatteryWorking Voltage: 3.4 - 4.2V DCStorage Temp.: -40 to 85 CelsiusOperation Temp.: -20 to 55 CelsiusHumidity: 5%-95% non-condensingWarning: Must insert SIM card before charging.Package Includes1 x Mini Tracker1 x USB Cable1 x User Manual