Genuine Hella Compact Horn Set 2 pcs Horn: 1pc-350Hz / 1pc-420Hz - 12V / 111dB - 3AL 012 588-001 - Brand: Germany (Asia Distributor - Singapore) - Full-form oscillator design for optimal sound projection - Compact and space-saving - High performance-to-size ratio - The light weight HELLA Compact disc horn consumes less power, yet delivers a focused, far reaching sound for highway driving. - Corrosion and water-spray resistant.