This product has been discontinued by Radial. It originally sold for $99.99. Sold as-is (the few I have left are brand new).
The HotShot ABi is a balanced signal selector that allows you to instantly select between two sources by depressing a latching footswitch. It features separate -15dB input pad selectors on each input to better balance the signal levels. And since it is completely passive, power is not required to make it work.
This makes the HotShot ABi ideal for applications such as switching between two dynamic microphones on a stage to save valuable input channels on your mixer. The latching switch also opens the door for other useful operations including using the ABi as a mute to turn off a microphone, to select between two wireless receivers for live sound system backup or to select between two microphones during community hall assembly where it provides the moderator with remote control over two audience microphones. To make switching as seamless as possible, separate level reducing pads on each allow louder sources to be attenuated so that the two sources can be better balanced. A trim switch on input-B further decreases the sensitivity by 6dB for fine adjustments.