Thank you for viewing. This is a listing for a Marco Super Gigahorn. It has a sound similar to a Mercedes-Benz horn. The box is not included. It was working without any problems. Please refrain from purchasing if you are sensitive to used items. Instruction manual included. A high-quality horn specifically for 12V vehicles, achieving a high volume with a frequency range of 500Hz and 400Hz. - Brand: MARUKO - Model Name: SUPER GIGA - Voltage: 12V - Frequency: 500Hz/400Hz - Quantity: 2 - Country of Manufacture: Japan