Improves the sound quality of CD and CD-ROM players with dirty laser lens and helps prevent costly repairs due to a dirty laser lens. Dust and dirt accumulate on your laser lens surface, although it's hidden inside the CD player. The laser lens of CD and CD-ROM players should be cleaned to help prevent skipping, mistracking and distortion. We suggest you clean your laser lens every 10 hours. Regular use will help optimize performance of your player. Cleans all CD/DVD format hardware - audio, computer, video, portable carousels and changers. Super clean, multi-brush design. Specially designed filaments clean quickly without damaging optical laser lens assembly.