... chrome plating 2.loud sound, strong penetrability 3. copper coil wire 4. universal type motorcycle horn, auto disc horn, electronic ... electric horn, disc hornModel No.: HLL-D09Specifications:1.Loud voice, strong penetrability 2.Tungsten contacts, heat resistant, no oxidation ... and pleasant sound.2. Top quality, strong and reliable, coil wire material, copper.3. Quick delivery time.4. Competitive price. ...