This time the technological aspect almost takes a back seat, the development of the prototype saw the boys emotionally involved, especially after meeting the customers to define the characteristics that the cane should have. In addition to a sensor that detects front obstacles and makes the stick vibrate more frequently as you approach them, our Bat-Stick is equipped with a height sensor and an additional ultrasonic sensor which, once activated, is able to measure the extent of the difference in height that is communicated vocally to the user. The feeling of having made a contribution to make our friends' daily lives less difficult is truly satisfying!