3-in-1 Headphone Cleaning Kit with Flocking Sponge, High Density Brush and Metal Tip, Double Hidden Design to Meet Various Cleaning Needs. Delicate and Soft Flocking Sponge Can Clean Dust In The Wireless Charging Case Of Headphones. Clean Headphones Easily Dirt on the outlet holes of other parts. The metal nib can clean stubborn dust and thoroughly clean the crevices