Colour:Black The hazard of noise is mainly the damage to the hearing, and it brings harm to other systems of the human body, which may cause headache, brain swelling, tinnitus, insomnia and other symptoms. It poses a hazard not only to people or animals, but also to instruments and buildings. YoungJay cares about your health. Our acoustic foam use the high density polyurethane foamed cotton. It can reduce the noise in studios, dancing halls and places which requires quietness. Easy to install in rooms. Definitely a good helper for you! Using Tips: -Apply the glue evenly on the back of the sound-absorbing cotton and on the wall. Wait for the glue to dry slightly. Spread the sound-absorbing cotton on the wall and press it slightly. -The sound insulation cotton on the construction surface should be evenly laid and treated specially at the joints. -Reserve the connection port of all kinds of electrical outlets.
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