3-in-1 Design：The bluetooth cleaning kit adopts High-density Brush and Metal Pen Tip,dual head hidden design to meet different kinds of cleaning needs.. | Metal Pen Tip： which can clean the small parts and holes of the earbuds, and deeply clean the crevices and stubborn dirt. Flocking sponge: Delicate and soft flocking sponge does not damage the surface of the earphones. It can clean the dust inside the wireless charging box of the earphones without causing any damage to the product | Flocking Sponge：The other end of the pen is a soft, high-density brush, which can easily clean dirt on the earphone sound outlet and charging caseThe delicate and soft flocking sponge is specially designed for cleaning dust and dirt on the earphone charging case, which can be cleaned quickly without damaging the earbud components and holes. | Wide Application：In addition to regular cleaning will keep your earbuds neat and tidy, the phone cleaning kit can also clean airpods, earphones, 3.5mm headphone jacks, mobile phones, keyboards, hearing aids, watches, etc. | Lightweight and Portable：The cleaning kit adopts pen-shaped design, light volume, easy to carry and easy to store. It does not take up space and can be easily carried with you.