Operation confirmed. The AC adapter is BOSS, not Roland. No issues with power. Due to its age, yellowing is noticeable. Please prioritize the condition shown in the images. It will be wrapped in bubble wrap and shipped in a cardboard box. 【High-Quality Performance】 Roland's SPD-11 is an electronic percussion pad perfect for professional music production and live performances. The six pressure-sensitive pads allow for dynamic playing and can express a variety of tones. 【Versatile Connectivity】 It features a wealth of input/output terminals such as MIDI IN/OUT, LINE OUT, PHONES, and AUX IN, making it easy to connect to other devices. This increases flexibility in studio and live use. 【Convenient to Carry】 The lightweight and compact design makes it easy to carry. A power adapter is also included, so it can be used immediately. - Brand: Roland - Model: SPD-11 - Number of Pads: 6 - Input/Output Terminals: MIDI IN/OUT, LINE OUT, PHONES, AUX IN - Power Adapter: Included - Condition: Good No comment, instant purchase OK!