12V, 24V auto reversion horn 1,Back horn for cars/trucks/electric car 3,SPL:120dB 4,sound: ... ..,bee bee,lambada, 5,rohs 1,12V/24V back up horn, reversion horn2,Product Model: BB-4013,Operating Voltage: DC 12V ... ..,DO...DO..., lambada ,music,bird7,Language:Greek,English ,Arabic/russian,French, Spanish 8,Color:Black/White9,Material:ABS china best quality ...