If an obstacle is detected, the stick warns the user by vibration.

如果检测到障碍物，棍子通过振动警告用户。

All noises, whether it's piano music, birds singing, or me talking, are made by vibrations.

所有的声音，无论是钢琴曲、鸟儿歌唱，还是我说话，都是由振动产生的。