This is an authentic EarthQuaker Devices booster, a Japanese domestic product. Product Name: ARROWS This is a limited edition model designed by Hisako Tabuchi. Furthermore, I received a handwritten signature from her at the time of purchase. This is a perfect item for fans. I have kept it for my collection, but I am selling it to organize my equipment. Price negotiation is possible ⭕️ - Brand: EarthQuaker Devices - Model Name: Arrows - Power Supply: 9V