Feature 1Made of nylon material, very sturdy and durable. 2Produces a powerful beeping sound that is 105 decibel, it will be louder in practical use. 3It can be protective when connect the wire inversely or wrong. 4Universal mounting bracket with slotted holes, can be mounted many place in your vehicle. 5Volume: 105db.SpecificationDescription: This 105 DB backup beeper warning alarmis made for heavy-duty andcommercial use, best for trucks van freight heavy vehicles. It can automatically adjust to a voltage range of 12-80 volt vehicles. With universal mounting bracket and slotted holes,it can be mounted anywhere in your heavy-duty vehicle, very convenient and easy to install, so it mainly used for car, excavators, construction machinery, special vehicles, parking and a variety of large vehicles container vehicles reminder. Features: 1. Made of nylon material, very sturdy and durable. 2. All DC12-80V vehicles universal. 3. It can be protective when connect the wire inversely or wrong. 4. Produces a powerful beeping sound that is 105 decibel, it will be louder in practical use. 5. Universal mounting bracket with slotted holes. It can be mounted many place in your vehicle. Specifications: 1. Material: Nylon 2. Color: Black 3. Voltage: DC 12V-80V 4. Caliber: Approx.70 mm / 2.76" 5. Rated Current: 300mA 6. Power Output: 15W 7. Volume: 105DB 8. Package Weight: Approx. 353g Package Included: 1 x Car Reversing Horn Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }