Wolo (415-MC Airsplitter MC Chrome Trumpet Horns - 12 Volt, Low and High Tone Features two bright chrome plated metal trumpets that produce a sound that is sure to be heard Will dress-up and look great on any motorcycle, with its beautiful chrome trumpet back covers and front weather protection covers Easy to install to any 12-volt electrical system Also the horn of choice of motorcycle owners; it will make a great looking addition to any bike Comes with Wolos compact compressor that is chrome plated, 30-amp relay, hose, trumpet chrome weather protection front covers, trumpet back chrome covers and mounting hardware