Headphone Hygiene Kit and Sweat-Resistant Headband Cover

The user is struggling with yellow stains on headphone headbands from exercise, indicating a common problem for fitness enthusiasts and gamers. This creates a dual product opportunity: 1) a dedicated headphone cleaning kit that safely removes sweat/oil stains from various materials (fabric, foam, plastic) without damaging electronics or finishes, and 2) a sweat-resistant, washable, and easily replaceable headband cover. The cover would act as a protective barrier, extending the life and cleanliness of the headphones. Target customers are anyone who uses headphones frequently, especially during physical activity, and wants to maintain hygiene and appearance.