Guitar effect pedal with a harmonic enhancer function. - Model Name: Magic Tone Room - Functions: Harmonic Enhancer & Low/High Cut Filter - Connection Type: True Bypass - Control Knobs: Low Freq, High Freq, Low Level, High Level - Input Terminals: Input, DC IN 9V Thank you for viewing. [About the Item] I purchased this new and have used it a few times indoors for testing. I don't think there are any major scratches, but as mentioned above, it has been used, so some signs of use are unavoidable. I believe there are no functional problems. [Regarding Price Negotiation] The price will be changed from time to time based on the duration of the listing and viewing trends. We cannot respond to individual price negotiations or requests to register desired prices (we will also omit responses to comments), so please understand.