horn volt:12V,24V frenquency:530/680 sound level:126dB package:color box air hornvolt:12V,24V,12V/24Vfrenquency:530/680sound level:126dBMOQ:300 PCSmaterial:zinc(golden)package:color boxapplication for truck and big carsample time3 days production time;15-20dayspayment 30% deposit.70%T/T to the seller before shippment