Theatre performance is forming a trend in countries like China. However, the study of enhancing audience experience in theatre is not conducted enough. The research shows that the major requirements of the audiences on theatre performance include immersion, self-resonance and self-identification. To fulfill their needs, a product design called ESTENDERE is proposed. It is a redesign of the traditional ticket but integrated with linear motor and an optical heart rate sensor and can be reassembled into a bracelet. By generating different vibration patterns which are enabled by the haptics brought from the linear motor, the sense of engagement and immersion could be partly improved. However, the choice of proper pattern which can suit the scene relates to the faith in simulation of the story. In addition, a symbolic memorial in the design can foster a sense of self-identification among the audience. By recognizing a shared experience, it is easier to form a conversation about the performance so that self-resonance could be enhanced during the process. Furthermore, the infographic on the ticket provides a preview for the audiences to get familiar with the performances, which helps them understand the plot more easily. Finally, heart rate data is used to monitor emotional feedback so that the performance could be improved later. The user evaluation results showed that, by applying the parameters above to ESTENDERE, users can gain an improved experience in theatre.