White Neutron effector with three control knobs. In addition to the range switch located on the surface, there is a direction switch on the side, allowing you to control the direction of the filter sound. It's similar to the direction a wah pedal moves after a note is played. The back is smooth, so we have attached a non-slip pad, but it can be easily removed. [Comes with box.] - Model Name: Neutron - Color: White - Serial Number: 02555 - Control Knobs: 3 knobs (Gain, Tone, Level) - Switch: Bypass switch