The
GSM
Room Transmitter is ideal for listening to a room conversation from far away. When you ring the
device, it
automatically answers allowing you to listen to people
speaking inside a room or vehicle up to a distance of 30
metres away. the device does
not ring or announce that you are calling, allowing you
to monitor all conversations discreetly. This unique listening device
lets you conduct audio surveillance without anyone
knowing and is simple to use. Our
GSM listening devices work anywhere on the GSM network
worldwide.
