No one would guess that this fully operating desk best calculator hides a secret. It is an ideal device for any private detective or private investigator in corporate or personal investigations as it wouldn't arouse suspicion, as a calculator is typical place in any property or office. There is no visible indication that this is anything but a calculator as the voice recording technique is hidden inside.
The calculator recorder utilizes an SD card, up to 32GB, which can store 570 hours of recording, and is battery powered, giving around 12 hours of sound activated recordings. The back of the calculator has to be removed, by the private investigator or private detective, to access these and to operate the start/stop control. The use of an SD card reader enables the private detective’s or private investigator’s evidence to be retrieved on his or her PC to support the investigation in progress. This is an very powerful device for covert surveillance as nobody would suspect their conversations had been becoming recorded by such an innocuous item.
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