This is the iFi audio DC iPurifier2. It is a discontinued product with a retail price of around 20,000 yen. It supports 5-24V, allowing it to handle a wide range of voltages. I am selling it due to changes in my usage environment. No box. No accessories. It will be shipped via Nekopos. There are minor stains and scratches from use. Power-on operation is not a problem (see image 5). Please take a look at the photos if you are concerned about the condition. Audio Accessories Power Supply Noise Reduction DC Power DAC Amplifier iFi audio