Vehicle horn horn. Bicycles often have a classic "bulb horn", operated by squeezing a rubber bulb attached to a metal horn. Squeezing the bulb forces air through a steel reed located in the throat of the horn, making it vibrate, producing a single note. The flaring horn matches the acoustic impedance of the reed to the open air, radiating the sound waves efficiently, making the sound louder. Other types of horns used on bicycles include battery-operated horns (sometimes even car horns on 12-volt circuits are incorporated) and small air horns powered by a small can of compressed gas. Oliver Lucas of Birmingham,
Sound the Alarm (Saves the Day album) Carrero was a member of the group, and on January 30, that they had re-signed with independent label Vagrant Records. The label had previously released the band's "Stay What You Are" (2001) and "" (2004) albums. Label boss Rich Egan stated that the band "helped put Vagrant on the map" and that the label was "ecstatic to have them back". On February 13, the track listing and artwork for "Sound the Alarm", which was designed by Soloway, was revealed. In March and April, the band toured the US with support from Circa Survive and Moneen. On March 23, "The End"