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disc car horn; automotive disc horn; universal disc horn Technical spec: 1.Power voltage: 12V 2.Frequency: H 420±20HZ L350± 20HZ 3.Applied voltage: 9-16V 4.Sound level: 110±5dB 5.Applied electronic curren: ≤4A 6.Life time:150,000times 7.Applied temperature: -40oC-80oC 8.Diameter: 75mm 9.Weight: 200g 10.Quantity: 45prs 11.N.W: 18kg 12.G.W: 19kg 13.Meas:47×37×27cm Product Characteristic: 1.Piercing, hard sound 2.Metal sound of the horn to ensure the immediate and unimpeded voice broadcast 3.Strong anti-rust, the mechnical design can against hard object hit. 4.The raw materials are not subject to the weather and are anti-moisture and dust. 5.Reliable quality Our products fully aline with ECE standard and OEM standard use for all kinds of car