Here is what Mike says…

‘ Tin of Tone - Overdrive

Meet 'Rusty', he's a Tin of Tone, he loves to drive your amp into glorious overdrive.

Rusty has a single 'Bias' control to dial in the grit and drive. This will crackle slightly when turned, this is perfectly normal.

This pedal is very interactive with your guitar volume control, cleaning up when rolled back.

Power Rusty with an internal 9v battery or external 9v tip negative, sleeve positive, standard pedal supply.’