Magnetic Mini GPS Real Time Car Locator Tracker GSM/GPRS Tracking Device US GF07
GSM Band: 850/900/1800/1900Mhz. - Expansion Card: Mini TF card. - Machine Battery: 3.7V 400mah lithium ion battery. All you need is a working SIM card (NOT included!). - Standby Current: material 2.5 mA.