Product descriptions:electronic horn,car horn Details FL 138D Voltage: (V) 12 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 TS16949 ,E-MARK,ISO9001:2000, CCCNational Security Certificate Remarks: 1. This is one of the best selling horns in our company; 2. 8 sounds, Contactless, Electronic, Waterproof, Suitable for fix, Multi-voice to select, it would transform the voice circularly, while pressing the switch continually and quickly;. 3. Best quality and novel design have gained most of customers all over the world. 14 months warranty, delivery on time, keep you known during producing period. For more details, please feel free to contact me!