The awn signal horn can be seen and heard! Because it not only looks chic, but also provides the necessary hearing over long distances. Because the horn emits a low tone of 380 Hertz /- 20 Hz and has a volume of 115 decibels. The horn measures 400 x 102 x 102 millimeters and is made of chrome-plated brass. The input voltage is a maximum of 10 amps at 12 volts.