ARTEC's Cool Drive distortion pedal (overdrive, distortion). I'm reorganizing my guitar gear and no longer use this, so I'm selling it. It features two tone expanders, "PRE" and "POST," allowing you to adjust the frequencies before and after the distortion. This enables you to create a wide range of sounds, from warm, mid-focused drive tones to edgy, scooped-mid metal sounds, all with a single pedal. 【Condition】 Operation has been confirmed with an AC adapter, but I haven't used batteries, so battery operation is unconfirmed. 【Power Supply】 I've read that some ARTEC effects pedals have a center-positive polarity and can't use standard guitar AC adapters, but this one is center-negative, so it works fine. (I was using a Boss AC adapter.)