Sound Heat Insulation Sound Absorption Sound Sound Insulation High Density Sound Insulation Sound Insulation Sound Insulation Sound Insulation Sound

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. 🎵 [High density & outstanding sound absorption performance] How to choose a soundproof board: Density decides everything! The key to soundproofing is density. Most commercially available products are 4.5kg or 5.5kg, but some products are falsely labeled as ``200kg.'' Our products have genuine 5.5 density and excellent soundproofing effects! Standard weight is 130g±5g. Please check the weight after purchase! ✅ Full refund guarantee if it is less than 130g±5g! 🎵R・BOOM sound absorbing material attenuates sound by converting sound vibrations into thermal energy. R・BOOM's sound absorbing materials are useful for noise control! Sound-absorbing sheets further enhance the soundproofing effect. Sound insulating materials are especially useful for people living in condominiums or apartments, or families with small children, who want to avoid complaints and problems caused by noise. 🎵 [Easy installation without damaging walls] The size of one sheet is 30*30cm. It can be easily attached to walls or doors using the included double-sided tape, and can be removed without damaging walls. Also ideal for use in rental properties. Available in a wide variety of colors, it can be used not only as a sound absorbing material but also as wall decoration goods. 🎵【Eco-friendly, flame-retardant material】The soundproof panel is made of high-quality polyester fiber that does not contain harmful substances such as formaldehyde, making it environmentally friendly and flame-retardant. Ready to use immediately after opening, no odor. Widely used in bedrooms, piano practice rooms, recording studios, offices, conference rooms, etc. 🎵【Usage Advice】The main purpose of R・BOOM sound absorption panels is to improve sound quality, and the effect will be more noticeable if it covers more than 70% of the indoor wall. 🎵 [Quality Assurance] Set contents: Sound absorbing board body, double-sided adhesive tape, Japanese installation manual *1. In the unlikely event that the delivered product is defective or malfunctioning, please contact us by email. Our support staff will respond promptly and promptly within 24 hours. Sound-absorbing panel, sound-absorbing material, sound-proofing material, sound-absorbing board, sound-insulating sheet, sound-proofing sheet, sound-proofing wall, sound-absorbing measures, interior decoration, urethane foam, sound-proofing measures, noise measures, window instruments, sound deadening, noise, soundproofing, moisture prevention, insulation, heat retention, flame retardant, 30cm x 30cm, double-sided tape included