Portable Pen Multi-function:7-in-1 computer cleaning kit .Multi-cleaning functions, the flocking sponge head allows you to clean your earphone charging compartment, and the high-density flocking head allows you to clean the sound hole and mesh of your earphones, as well as the microphone hole and sound hole of the mobile phone , net mouth, metal pen tip, can let you effectively clear stubborn stains. | Efficient Cleaning Kit: well-designed cleaning tools, With a simple key puller, the change of key cap is no longer laborious and the removal of key cap is cleaner and more thorough.Save labor, help clean hard-to-reach areas or any other corners. It is a must for anyone wearing headphones. Never use liquids to clean the earphones.Headphone cleaner kit can be applied for earphone charging case, earphone, mobile phone, keyboard, laptop, hearing aid, watch, etc | Soft Brush Does Not Hurt Keyboard: Special selection of nylon brush with moderate softness and hardness, with high pore strength, good elasticity, stiffness and compactness, more labor-saving friction. Equipped with a flannel sponge, cleaning spray, keycap buckle, high-density brush, and multi-functional cleaning pen to meet various cleaning needs.Deep cleaning every corner of the keyboard and earphones, make dust nowhere to hide | Meet All Kinds of Cleaning Needs: With Nylon Bristles, Flocking Sponge, High-density Brush, Metal Pen Tip and Keycap Puller, dual head hidden design to meet a variety of cleaning needs.This cleaning pen can not only clean the earphones, but also the earphone charging box, mobile phone earpieces, microphones, etc.Safety, Simple, Effective, Static-free, Multi-propuse, Unique Cleaning kit Remove gunk from hard to reach areas. | Improve Sound Quality：Compatible with most Bluetooth earphones on the market.first you use the soft brush to clean the general surface, then use a small portion of putty to press on the areas that need to be cleaned for specifically target dust and earwax, making your electronic product look as good as before.