GENERIC TARZORO 3-IN-1 Multifunctional Cleaning Pen, Cleaning Pen for Airpods Pro 1 2 Cleaner Kit Soft Brush for Bluetooth Earphones Case Cleaning Tools for Lego Huawei Samsung MI Earbuds, White. 3-IN-1 Multifunctional Cleaning Pen with flocking sponge, high-density brush and the fiber brush. The flocking sponge can clean the dust in the wireless charging case of the earphone the metal pen tip can clean the stubborn dust, and the high-density brush can clean the dirt on the sound outlet hole of the earphone, and the fiber brush can clean the computer keyboard to keep your keyboard clean.