The NEW 12/24V Back-Up Alarm by Velvac is a powerful and reliable parking assistance device that emits a loud 107 Db sound to alert drivers of potential obstacles when backing up. With a sleek black design, this alarm is a practical and essential addition to any vehicle, providing added safety and convenience for drivers. The Velvac brand ensures quality and durability, making this back-up alarm a top choice for car and truck owners looking to enhance their parking assistance systems.