12V electromagnetic horn for cars, motorcycles and heavy vehicles. Power supply: unipolar – bipolar. Current consumption at 13 V (26V): 4 (2.5). Sound level at 2 m: 109 db (A). Fundamental frequency: 500 +/- 5%. Sound type: high-pitched. Weight with brackets and leaf spring: 0.22 Kg. Reliability: 50,000 operations (1 ” ON – 4 ” OFF). Protective coating for metal parts: white zinc plated with Cr3. Operating temperature: -20 °, + 80 ° C. Approvals: CEE 70/388, R28 ECE / ONU, CEE 93/30.