For those serious about significantly improving the quietness of their car. This product (Mille-feuille Sheet 2) is a soundproofing sheet with the highest performance. With a three-layer structure of MLV (high-density vinyl) + NBR rubber + butyl rubber, this "professional-spec" deadening sheet powerfully suppresses the intrusion of all kinds of noise, such as road noise, rain sounds, and engine noise. It reduces noise to a level that cannot be achieved with general sound-absorbing materials or cushioning materials, realizing a "quiet and high-quality in-car space." --- ■ Features ● MLV Layer (1mm) — Overwhelming sound insulation performance: 29dB ・High-density vinyl powerfully cuts airborne and vibrational sounds ・Overwhelming effect on road noise ・Authentic soundproofing material also used in music studios and industrial applications ● NBR Layer (3mm) — Vibration absorption & heat insulation UP ・Absorbs minute vibrations transmitted to the car body, reducing reverberation ・High heat insulation, reducing summer heat and winter cold ・Significantly improves quietness when combined with MLV ● Butyl Layer (1mm) — Strong adhesion ensures adhesion and airtightness ・Uses high-quality butyl that is resistant to lifting and peeling ・Very high durability after installation --- ■ More Quietness Than You Imagine ● Road noise reduction: Up to 29dB (MLV single value) ● Perceived quietness: 40-60% improvement (general value when combined) ● Significantly reduces echoing and reverberation in the car The driving environment will change dramatically, including reduced fatigue on long drives, improved conversation clarity, and clearer audio. --- ■ Suitable Installation Locations ● Doors (inner panel, outer panel) ● Roof ● Floor ● Trunk ● Luggage space ● Inside wheel wells ● Back of heat and sound insulation panels around the engine etc., widely applicable. --- ■ Installation Examples ● Doors Reduces road noise & suppresses vibrations behind the speakers, making the car quieter and making it easier to listen to music. ● Roof Rain and wind noise become surprisingly milder, significantly reducing stress during high-speed driving. --- Shop Kaze Kobo has many other products, such as lights and deadening materials, so please check out the hashtags and my page! #shopKazeKobo'sSoundQualityImprovementCommittee --- ■ Summary "Quietness is determined by the 'choice of materials'." This MLV composite sheet is a soundproofing material that professionals choose and delivers reliable results. Give your car "true silence."