Moisture-resistant Nano-coating
A little bit of sweat every so often is not particularly likely to cause too many severe problems for the average wearer, yet excess moisture built up over time and time can and surely will. That's why our moisture-proof nano-coating matters. The wetness will easily fall off with our nano-coated waterproof cover all over the outer housing, preventing water moisture from gathering, gradually getting through the case, and thereby causing damage to the inside structure. To keep sweat from sitting on the earbuds and remove excess moisture from the outside of them, we kindly suggest that you give them a disinfectant wipe after enjoying a cheerful running with EarFun products, just like any other exercise equipment you used.