EarthQuaker Devices White Light effector with three knobs. - Model Name: White Light - Brand: EarthQuaker Devices - Number of Knobs: 3 - Power: 9V Thank you for viewing. Purchased used in July 2024. There are no issues with the sound or operation. If you have any concerns about the condition, please comment. I am a non-smoker. Instant purchase is OK. I will not make it exclusive. I will prioritize the person who purchases first, even if negotiations are in progress. Please refrain from purchasing if you are a nervous customer, as this is a used item. Please consider purchasing after understanding that this is a used item.