Usable ball games for the visually impaired. (Machine-translation by Google Translate, not legally binding)

摘要

Ball usable in games for the visually impaired characterized by containing two sound devices and where one is internal to the surrounding spherical surface and the other is housed on this surface through an appropriate capsule, so that the first device is a discontinuous buzzer intermittent that can be turned on or off voluntarily through a suitable element located on the spherical surface and the second device is a rattle type that is activated only with the movement of the ball. (Machine-translation by Google Translate, not legally binding)