micro espion GSM

Sound activated GSM bug is an audio spy device which calls your surveillance mobile phones when it picked up sounds around its vicinity. Simply insert a GSM SIM card and program it to your desired phone number for call back and start monitor target location from anywhere in the world.

The sound activated GSM bug offers an alternative manual surveillance method. Turn switch next to SIM card slot from "A" to "B", then you can call the number used by GSM bug to listen the sounds around GSM bug. Option A only allows you to call the spy audio device and listen in to conversations that are being detected. Option B allows the spy audio device to call you when it detects sounds, or if people are talking, while still allowing you the freedom to call the device and listen in to who's talking.