Take matters into your own hands with the 12v Electric Trumpet Horn, you can ! This low tone trumpet horn emits a frequency of 420Hz, making it perfect for getting the attention of those around you without being too overwhelming. Plus, at 109dB(A) at 2m, it's sure to get their attention! And with its black plastic body and red plastic cover, it's not only functional but also stylish. mounting strap 83mm diameter included.