Magnetic Mini GPS Real Time Car Locator Tracker GSM/GPRS Tracking Device US GF07
GSM Band: 850/900/1800/1900Mhz. All you need is a workingSIM card (NOT included!). Expansion Card: Mini TF card. Small size and light weight, easy for carry. Material: Plastic. Battery Capacity: 3.7V 400mAh Li-ion Battery.