soundsbay acoustic panels 18 pack square soundproof wall panels self-adhesive, acoustic foam panels high density sound proof foam panels for home office, recording studio, ceiling 12" x 12" x 0.4" white square-18 pack white is up for auction in Musical Instruments. The current bid is $3.00, 94% below the $49.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.