【New, Unopened】 Please note that we do not inspect the product by opening it, as this would diminish its value. Therefore, we cannot address any defects. Please purchase only if you understand and accept this. Bluetooth Earphones Wireless Earphones 【2024 Bone Conduction Evolution, Exquisite Fit】 Open Ear Earphones Bluetooth Earphones Bluetooth 5.4 MELUST, Ear-Free Earphones, Lightweight, 48-Hour Playback, Type-C Fast Charging, Bluetooth Earphones, AAC/SBC, Automatic Pairing, Hi-Fi, Sound Leakage Prevention, IPX7 Waterproof, Touch Button, Single/Dual Ear (Black)