A/B Switch

An A/B box is a very useful basic tool. 
It can be used twice: It routes an input signal to two outputs (either A OR B). This can be used to e.g. to choose between two amps.
Flip the pedal and you're routing two input channels to one output. This can be used to switch between two guitars without removing the jack cable.
When activated, each channel shows its own LED color (blue and red).
Super soft footswitch from GORVA and quality jack sockets ensure a long service life. 
The pedal also works without a power supply, but in this case without a status LED