These compact extra loud four  trumpet  chrome  train  horns give big sound without taking up much space. Powered by air and electric solenoid. 12-24 Volt electric soleniod valve, mounting bracket and hardware are included. Sold complete for easy installation. Heavy-duty chrome plated aluminum and brass trumpets.

• 12"H x 9-1/2"W
• 140-145 decibels
• 1/4" I.D. air hose