48 Pack Acoustic Foam Panel Wedge Studio Soundproofing 1" x 12" x 12", Black Description Specification: Total Size: 30 * 30 *2. 5cm (12"*12"*1") .Effective against standing waves and flutter echoes in most small-to-medium sized rooms. Overall NRC: 0.4 For use in vocal booths, control rooms and studios. Brand New Tile Acoustic Foam Made by Imported High Quality Foam Sound-Absorbing Foam High density acoustic foam cell structure for maximum noise absorption Helps to flutter echoes and reduce excess reflections and reverberation Improves vocal clarity and acoustics of your room Ideal for use in recording studios, home theatres and karaoke room Features: good for studios, recording studios, vocal booths, control rooms.Used to absorb mid to high range frequencies and diminish echoes. Overall Noise Reduction Coefficienfoam tiles perfectly aligned, professional sound qualityColor: Black Total Size: 30 * 30 *2. 5cm (12"*12"*1") Package include: 48PACKCompress the packaging.High quality products.Open the package for quick recovery.6 to 12 hours. Product Details: Handling We will ship all orders within 3 business day of payment. Delivery We Do Not Ship Outside of the Continental US. Return Policy All items qualify for returns within 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged. Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction.