ITEM NAME:12V 135DB Super-Loud Dual Air Horn Kit Trumpet Freight Train Car Truck Boat iuk Descriptio n Specifications: - Material: PVC and Metal - Voltage: 12V - Dimensions: Approx 87*90*82mm - High/Low Tone Frequency: 500 Hz/410 Hz - Sound Level ( 2 Meters): 135 dB - Color: Red (As Pictures Show) - Working pressure: 0.3~0.9MPa - Temperature adaptation range: -40~80`C. - Quantity:One Pair (2pcs) Product list: One Pair (2pcs) Electric Air Horns Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ One Pair (2pcs) Electric Air Horns.High/Low Tone Frequency: 500 Hz/410 Hz. Product list: One Pair (2pcs) Electric Air Horns. One Pair (2pcs) Electric Air Horns. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.