HIGH SOUND LEVEL: Our Mirkoo backup alarm can make a powerful beeping sound that is 107dB(±3dB). Nobody will ignore this beeping sound when you are reversing vehicle..PREMIUM QUALITY: The Mirkoo backup alarm is made from premium quality materials to ensure durability and longevity. It can work in a variety of temperature environments, no matter you are in Florida or Alaska..EASY TO INSTALL: Our backup alarm is very easy to install, you just need to splice a wire from the positive screw terminal to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice a wire to the ground(Negative wire)..UNIVERSAL FIT: The Mirkoo backup alarm is designed to work on 12-80 Volt DC vehicles. It will automatically adjust to a voltage range of 12-80 volt vehicles. Including Trucks Vans Freight Vehicles Cars Lorries SUV..100% SATISFACTION GUARANTEE: Buy Mirkoo backup alarm without risk. We provide 100% Lifetime Money Back Guarantee. You’ll totally love it or get all your money back. It’s that sample. What are you waiting for? Just add it to your cart.