Upgraded Density: Our bass traps now have an updated density 25 kg/m^3 to help eliminate low-frequency sounds created by speakers when you are podcasting, practicing a musical instrument, watching movies, or creating music to improve the purity of sound.,Without Damaging Your Wall: Built-in 30 PCS double side adhesive tape, which can be easily washed. It is easily removable and will not damage your walls or surfaces, and will tear off without leaving any trace.,Improve Low Frequency: Acoustic bass traps corner are made from a high density, fireproof, non-toxic, and high-quality material, to help eliminate reverb and echoes of bass sounds. They reduce unwanted reflections, dampens and diffuses mid to low frequency sound waves inside a room to minimize interference, and increases sound clarity.,Wide Application: Great for HIFI studios, recording studios, rehearsal rooms, vocal booths, control rooms, YouTube/podcast recording, home theaters, and are also ideal for professional movie theaters, and more.,Easy To Install: 16.5" X 6.3" X 12" bass traps corner installed at the ceilings and corners of a room will ensure the balance of the waveform in the low-frequency part of the frequency response curve. One wedge requires six pieces of tape to install your bass traps on your walls.