uxcell Electric Snail Horn Siren Black for Motorcycle Product Name: Motorcycle Siren Horn; Color: Black Material: Plastic,Metal; Dimension: 10 x 9 x 8cm/ 4 x 3.5 x 3.1 inches(L*W*H) Package Content: 1 x Motorcycle Siren Horn Rated Voltage: DC 12 V High Horn: 510Hz