POWERFUL SOUND: Dual-tone horn system delivering impressive 115dB output with frequencies of 410Hz and 510Hz for maximum road safety and attention UNIVERSAL DESIGN: Compatible with all 12V vehicles, featuring standard mounting configuration for hassle-free installation across most car models WEATHER-RESISTANT: Robust waterproof construction ensures reliable performance in various weather conditions, perfect for all-season use PREMIUM BUILD: Crafted from durable ABS material with sleek chrome-finished housing, measuring 9.5 cm x 9 cm x 8 cm for compact installation COMPLETE KIT: Includes two horn units with all necessary mounting hardware, allowing flexible installation options whilst maintaining powerful sound projection