Specification:- Voltage: 12V DC, Current Consumption: 4A Fundamental Frequency: High Tone - 460Hz, Low Tone -360Hz, Sound Pressure Level: 105-115dB. Product made from heavy quality plastic and metallic material which ensure product durabilty High quality sonorant diaphragm with full harmonious tone. Sufficiently loudest trumpet sound to draw peoples attention. Anti-corrosion, water proof and suitable for all weather conditions.