| 摘要 |
An apparatus 100 provides an audible cue that can be used as an alert to an occupant of a vehicle or a pedestrian. The apparatus 100 includes at least one sound emitting element within a housing, the housing being securable to a bicycle 200, and a trigger element 105 securable to the bicycle, for a rider of the bicycle to indicate when an audible cue is desired. The sound emitting element is arranged to generate an audible cue having a sound pressure level of at least 120 dB. The sound pressure level may further be at least 140 dB. The apparatus may further comprise at least one illumination source such as an LED. The sound emitting element may be arranged to operate in both a loud and quiet mode of operation. The quiet mode of operation may imitate a conventional bicycle bell. A means is further provided for securing the apparatus to a bicycle. |
