This speaker duct sponge plug is designed to optimize audio performance by reducing unwanted noise and enhancing bass clarity. Crafted from acoustic sponge material, it fits seamlessly into speaker ports or ducts, providing sound dampening and airflow control for a more refined listening experience. Features -Color:Black -Material:Sponge -Size:6.00X4.20X4.20cm/2.36X1.65X1.65in -Noise reduction: the sponge plug effectively minimizes vibrations, wind noise, and sounds, delivering a clearer and more immersive audio experience -Enhanced bass reflex: designed to improve bass response, the plug optimizes sound quality for various speaker types, ensuring deeper and richer lowfrequency tones -Easy installation: simply insert the sponge plug into the speaker port or duct for quick and setup, making it convenient for all users -Versatile compatibility: suitable for home speakers, car audio systems, portable speakers, subwoofers, and modified speaker setups, offering wideranging usability - design: made from sponge material, the plug is built to last and withstand regular use without compromising performance Package list: 2 x Speaker Port Tube Sponge Plug