Selling to clear out inventory. Purchased new on Amazon in January 2024. While I haven't measured it precisely, I believe the battery life is the same as when I bought it. I think I've used it for about 50 hours in total. Wireless earphones by DONNER, famous for guitars. Despite the low price, it features a 1DD+1BA configuration, allowing you to enjoy rich sound expression. Personally, I think this earphone truly shines after adjusting the equalizer in the app. These are wireless earphones with excellent cost performance. This is a used item. Please understand that there is some wear and tear before purchasing. The following is auto-generated text: Wireless earphones that achieve high sound quality, with touch control function. - Brand: DONNER - Model Name: Dabuds ONE - Color: Black - Accessories: Charging case, ear tips - Design: Wireless earphones - Features: Design for improved sound quality - Functions: Touch control Thank you for viewing.