Seat system that changes the threshould of the pressure load based on the pressure load to the sensor with output by touch operation of sensors

A seat system, comprising:

• a seat body on which a user can be seated;
• a plurality of sensors provided on or in the seat body or a structure arranged around the seat body, each being configured to detect a touch operation by the user seated on the seat body;
• an output device configured to output at least one of sound, light, and vibration;
• and
• a control device configured to control the output device such that, when one or more of the sensors detect a touch operation, the control device causes the output device to generate a corresponding predetermined output,
• wherein the output device includes a speaker, and wherein the predetermined output is a sound with a predetermined pitch, and
• wherein the seat system can output sound from the speaker and instruct a user to perform touch operations on sensors located on or in different members, wherein the control device can acquire pressing loads applied to the respective sensors during the touch operations and, then, the control device changes a predetermined threshold value of pressing load required for sensors on or in each member to detect a pressing load.