Radial Engineering HOTSHOT ABi Line Input SelectorThe Radial Engineering ABi Line Input Selector is a highly useful input switch for recording or stage use. Built to take abuse with a chassis made of 14 gauge steel, the Hotshot ABi has a number of applications. You can use it to switch between two microphones on stage, between two audio sources to feed into a mixer, between two instruments, or as a simple cough mute switch. Another use for the Hotshot ABi is as a switch between two wireless