Product descriptions:Car horn,electric horn,auto speaker Details FL 160 H/L Voltage: (V) 12 Current: (A) ≤4 Frequency: (Hz) H=510±20 L=410±20 Sound level: (A) 105-118 db Diameter: (mm) Ø76 Applicable for cars Toyota exclusive Certified ISO9001:2000, CCCNational Security Certificate Remarks: 1. Dual-tone and Single tone 2. Best quality and novel design have gained most of customers all over the world. 14 months warranty, delivery on time, Good after service. For more details, please feel free to contact me!