Thank you for looking. <Accessories> Power cable <Condition> I have not been able to test the sound output as I currently do not have the environment for it, so I have only confirmed that it powers on. As this is an old item, for the sake of preventing any trouble, please consider it as junk. The M-VS1 is a standalone hardware version of the JV series expansion board "SR-JV80-04 Vintage Synth," released in 1995. However, the contents are not exactly the same; the arrangement of waveforms and patches (presets) also differ. It is equipped with 8 types of reverb and 3 types of chorus effects. MV-51 Sound Expansion, with digital display, adjustable volume. - Brand: Roland - Model: MV-51 - Type: Sound Expansion - Connection Terminal: Headphone terminal - Volume Adjustment: Volume knob - Display: Digital display Thank you for looking. - Shipping will generally be done within 24 hours. - Shipping will be done using convenience stores, post offices, etc., usually in the morning and evening. - Recycled materials may be used for packaging. - Please rest assured that fragile items will be packed with cushioning material. - Please feel free to ask any questions regarding the product. - Please make price negotiations within reason. - No pets. Non-smoker. - Please note that the shipping method may change.