[Problem] To provide an information gathering device which achieves easy button selection and user friendliness. [Solution] An information gathering device (1) is provided with a plurality of selection buttons (6a 6e 7a 7c) which a user can press a communication module (10) capable of storing identification information relating to the user and information relating to a pressed selection button and transmitting the stored information by radio to a host device and a cancel button (4) for cancelling the information relating to the pressed selection button. The communication module (10) comprises a button battery (14) for supplying power supply voltage to an IC chip (12) and the IC chip comprises a storage unit (21) for storing information specifying the pressed selection button and information relating to the time of pressing on a time series basis a control unit (22) for performing control for storing the information in the storage unit and a radio communication unit (23) for performing proximity radio communication with the host device. When the cancel button is pressed the control unit (22) stores in the storage unit information that pressing information relating to the selection button pressed immediately before the cancel button is pressed is cancelled.
