PLEASE NOTICE: 1. Our Spionlink Sim card only support to work with the following countries, It doesn't work in other counties.Russian Federation,Belgium, Bulgaria, Cyprus, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom,Switzerland ,USA, Canada, Mexico, Puerto Rico.If you will not use this tracker in these above countries, please choose the device tracker only, and buy a sim card from your country.2. Our Spionlink is only data sim card, not support sms, so if you use spionlink sim card, the tracker voice monitoring function will not work. if you want to use this function, then please order sim card from your local. 3. Spionlink only 1MB free data in it, after testing you need top up it. MiCODUS ML910G Magnetic Asset 4G GPS Tracker 10000mah Voice Monitor Free APP 4G LTE Cat1 network & 2G GSM network This GPS tracker supports the latest 4G network on multiple bands for operation globally and also stay with a fallback to 2G network, can work perfectly around the worldwide countries. Built in Super Strong Magnets It has 2pcs big magnets, with super strong magnetic, can be installed very easily, all people will can manage it, no need professional installation. Multiple Working Modes Our MiCODUS ML910G GPS Tracker has multiple working modes, you can swtich the modes easily under different demands, this can help you to extend the battery life very much.The device has built-in rechargeable 3.7V 10000mAh Li-ion batteryTracking Mode10-15 daysPower saving Mode30 daysHibernate Working Mode60 days IP65 Dust And Waterproof