Mobile GSM SIM Card Sound Monitor

        But no one will notice, because this device looks like a USB hub or small USB device.

        You only need to buy a new SIM card, place it in this device. Once you call this number, this device will auto answer, and it will work like a phone with a sensitive speaker. So you can actually hear what anyone's talking about you or whatever when you call in that sim card's phone number.

Features and Specifications