Product descriptions:car horn,car speaker,snail horn Details FL 138A Voltage: (V) 12-24 Current: (A) ≤4 Frequency: (Hz) H=510±20 L=410±20 Sound level: (A) 105-118 db Diameter: (mm) ø90 Applicable for cars Universal type Certified ISO9001:2000, CCCNational Security Certificate Remarks: 1. Red colour, waterproof and dustproof type, novel design 2. This type is very popular in America and Europe (best quality) 14 months warranty, delivery on time For more details, please feel free to contact me!