HELLA 007424801 Twin Trumpet High/Low Tone 12V Horn Kit with Bracket Hella's ultra-reliable trumpet horns look and sound like nothing else on the road. These horns guarantee the attention needed in critical situations. Trumpet horns are for the performance oriented driver for whom a high level of safety combined with great design and high quality is key. HELLA horns guarantee best functionality, optimum fit and long lasting customer satisfaction. Original equipment quality horns you can trust from a global leader in automotive technologies for more than 100 years . Trumpet horns come with a M8 screw horn bracket and with flat connections of 6.3 mm, open, blade type. High tone: 500 Hz - Low tone: 400 Hz - Sound level: 110 dB(A) - Voltage / Amps: 12Volts/6Amps Application: UNIVERSAL; Kit includes: 1 high-tone 500Hz horn, 1 low-tone 400Hz horn, 1 relay, 2 mounting brackets and mounting instructions; Dimensions: 5.00 inch high x 4.30 inch wide x 3.2 inch diameter including mounting bracket