Ideal for use in office applications, this fully functioning pocket calculator contains a concealed transmitter and microphone capable of picking up sounds up to 10 metres away. The transmitter can be switched on even if the calculator is not in use and is powered by a long-life Lithium battery that gives 10 days continuous operation. The inconspicuous nature of the calculator means that it can be used as a powerful mobile monitoring tool, easily placed in the perfect target area for ultimate clarity.

* For export outside the EC only