Spy Calculator Room Listening Devices

Use mobile phone technology to listen into conversations from anywhere in the world
Simple mobile phone SIM card inserted into the GSM Audio Bug, just like you would insert into your phone, then hide it in any room, car, handbag etc that you would like to monitor.
Use a mobile phone or landline to call the GSM Audio Bug at any time which will silently answer your call from its location. 3-15 days standby timeReplies clear and sharp sounds from any location There are hundreds of reasons why you might need to monitor a room but whatever your reason you can be confident that this GSM Audio Bug represents the very latest in audio bugging technology and will reply clear and sharp sounds from any location where it is hidden. The ability to listen-in from any location at any time, including when you’re on the move, provides unparalleled flexibility not possible with traditional FM transmitting audio listening devices.