2 PCS 6.5" Foam Speaker Enhancer, Self Adhesive Car Door Speaker Foam Baffles with High Rebound, Soundproof Auto Sponge Bass Blocker Fast Rings for Enhancing St

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Practical Function: Designed for automotive audio systems, this speaker enhancement ring concentrates sound output and reduces audio dispersion, delivering richer bass and clearer mid-to-high frequencies. It comprehensively enhances sound quality for a more immersive musical experience Premium Material: Made from high-quality nitrile rubber foam, this speaker enhancer features exceptional heat resistance and deformation resistance. It maintains stable elasticity and shape under varying temperature and humidity conditions, ensuring long-term reliability and consistent performance over time Ideal Size: This speaker enhancer measures 7.67 inches (19.5 cm) in outer diameter, 5.7 inches (14.5 cm) in inner diameter, and 1 inch (2.5 cm) in height, fitting most 6.5-inch speakers. If it is slightly oversized, it can be trimmed to ensure compatibility with various audio systems Easy Installation: This speaker enhancer features a self-adhesive backing for easy installation. First, clean the surface where the sticker will be applied, ensuring it is clean and dust-free. Then peel off the protective layer and press it firmly around the speaker for secure attachment Wide Application: This speaker enhancer is compatible with in-car audio systems in various vehicles, including sedans, SUVs, and trucks. It is also suitable for home audio systems and other sound optimization scenarios, significantly improving speaker sound quality Delivery Timeframe Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows: For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.