To provide a user-friendly information-gathering device enabling users to select buttons easily. An information-gathering device has a plurality of selection buttons, a communication module, and a cancel button. The communication module has an IC chip and a button cell. The IC chip has a storage which stores information for identifying the pressed selection button and information about the time of the press, in chronological order, a controller which performs control to store the information in the storage, and a wireless communication unit. When the cancel button is pressed, the controller stores, in the storage, information requesting to cancel press information about the selection button pressed immediately before the cancel button is pressed.
