Descriptions : 1.This device allow you to anyone in any place. 2.You only need to buy a new SIM card, place it in this device. 3.Once you call this number, this device will auto answer, and it is working like a phone with auto answer without speaker. So you can actually hear anyone's talking about you or whatever when you call in that sim card's phone. 4.It can also auto dial your telephone when it hear sound around it. 5.it is the ideal SIM surveillance equipment you can't miss. Features a unique super- slim design, place it at home or even in the office. 6.You could listen to the sound of its surrounding wherever you want, it is the latest SIM surveillance equipment available.