This is a Sony SA-W17 Subwoofer, magnetically shielded type,120v, 60 Hz, and 45 Watt.   

This is qualitybuilt Subwoofer in pristine condition. It has been tested and found fully operational. There appears to be NO scratches or othercosmetic issues.  It looks brand new and worksgreat.  No additional items or accessoriescome with this item.  See photos, as theyare part of the description.  Note, thisunit is an appropriate add-on item for the SONY HCD-M500AV stereo system, as soldunder another listing of mine.

This is a heavy item about 20 to 30 lbs. and shipping can be expensive.  There is a minimum cost would be $45. so pick-up is preferred.  Shipping provided to locations within the continental USA, only,.  Other shipping locations would need to be determined. No international shipping.