Purchased new in 2022, I used these earphones only indoors while desk working (about 4-5 hours a day). They've been working perfectly fine until now, and I really liked the sound and operability. However, I'm selling them because I got new earphones. I charged them after using them for a few days, so I didn't really notice the battery drain. However, I think the battery life is shorter than when I first bought them. They charge quickly. These earphones are known for their good battery life, so I hope you'll consider them! Everything in the pictures is included. * Disinfected with ethanol, reset, and charged. [No price reductions, returns, or exchanges] * Please consider purchasing these used items with the above in mind. I will wrap them in bubble wrap and ship them within 1-2 days of purchase.