4 Pcs 6.5" Speaker Car Universal Foam Speaker System Kit, Self Adhesive Sponge High Rebound Car Speaker Foam, Speaker Insulation Ring Soundproof Cotton Pad

• 🎃1.This soundproof ring has strong sound absorption. In the door panel environment, it is easy to produce mid-to-high frequency noise. The use of the car horn ring can effectively attenuate the amount of noise in the car, interfere with and weaken the low-frequency noise and play a good sound absorption effect. High purity EPDM is adopted to effectively insulate the noise transmission, absorb the noise of the tires during driving, and make the sound effect clearer and stronger.
• 🎃2.This model is equipped with two pairs of 6.5-inch car horn soundproof rings. The outer diameter length is 19.5cm /7.68 inches, the inner diameter length is 14.5cm /5.71 inches and the height is 2.5cm /0.98 inches.Suitable size for most car horns, it is a universal horn sound insulation ring.
• 🎃3.Adopting high-quality double-sided tape, easy to paste, unique adhesive force, strong initial adhesion, long-lasting adhesive force, high and low temperature resistance, strong chemical resistance, not easy to fall off. The material of the product is soft, elastic, and compressible, which can form a good sound insulation and sealing effect between the interior panel and the sheet metal and improve the sound quality of the car horn.
• 🎃4.Fully open-cell foam design can effectively discharge the infiltrating water, suppress the bad conditions of freezing in winter and sultry in summer, and ensure that the product is durable.Stable weather resistance. It is not affected by high and low temperatures, adapts to various temperatures, exerts a stable sound insulation effect, and improves the sound of cars and speakers.
• 🎃5.High flame resistance. Pass the GB8410 flame retardant test to ensure safe and reliable use in the car.The material is environmentally friendly and safe. Pass the ROHS Directive Hazardous Substance Test to ensure that the product does not emit harmful substances to the human body.

🎃🎃Specifications: Color: Black Material: Foam Outside Diameter: 19.5cm/7.68" Inner Diameter: 14.5cm/5.71" Height: 2.5 cm /0.98 " 🎃The Importance of Sound Absorbent Cotton: A ring of sound absorbent cotton is added to the rear of the horn,mainly for absorbing excess signals at a specific frequency band.In fact,the speaker is forward,backward will vibrate air transmission sound energy, in the speaker,the sound energy propagated backward will be a large proportion of the lock in the box, easy to cause standing wave and other bad sound image,resulting in hearing turbidity,so the absorbent cotton absorption of some frequency signals, and it can effectively reduce these problems. 🎃Package Includes: 4 x Speaker Soundproof Ring 🎃Note: Due to manual measurement,please allow ±3mm deviation.