MORLEY Pro Panner Pan-Volume Mod. PVL
It can act in two different ways. With the stompswitch off, it's just like a volume pedal, feeding the signal to one or both outputs, and with the stompswitch on, the pedal will pan the volumes between the two outputs. So you can plug the two outputs into two different amps for example and then pan your signal from one to the other or just use it as a volume pedal to play through both.