Sell BEIYIN [12Pack] Studio Recording Wedge Acoustic Foam Panels Bass Trap Sound Absorption Sponge Wall Corner Sound Treatment Tiles 9.4 x 4.7 x 4.7"inch best price

--100% brand new and high quality. --Helps to flutter echoes and reduce excess reflections and reverberation --Improves vocal clarity and acoustics of your room. DESCRIPTION 1.This product provides strong noise reduction and is cost-effective. Low frequency waves are long and difficult to stop, but corner bass absorbers solve the bass problem. 2.Bass traps can reduce interference and response of reflecting sound indoor,improving the purity of sound.It is a high-performance product of sound-absorbing material. 3.Sound absorption foam panel can absorb the sound waves after they reflect inside the foam. It can absorb the audio frequency to lower the noise caused by reflection and echo. Very Good Quality High NRC! Core material: Polyurethane (Fireproof) . Flame retardant: B1 flame retardant.Technical Bulletin California 117-2013 Flammability Standard Compliant. Grade: AAAA Color:black. Size: (L x W x H):24*12*12 cm / 9.4*4.7*4.7 inch.Please allow 5-15mm error. Package Quantity :12pcs. Use the installation: 1, The glue were evenly coated sound - absorbing Foam on the back and the wall, when 80% glue dry, the Foam slightly pressed over them. 2, With a relatively strong adhesive double - sided adhesive, stick on the acoustic foam, the acoustic foam stick on the wall press flat. Note: 1. Your valid phone number is very necessary for the shipping, otherwise we can`t guarantee that the package would safely arrive. 2.Please allow slight manual measurement deviation for the size data and slight color difference for above images due to different computer setting and brightness. thanks! 3.The packaging of the factory is usually compressed packaging, After receipt of the goods, please open the package for 24-72 hours or for a longer time, such as full rebound,after the completion of the foam, then the construction effect is better.