Although the item has been opened for photography, it is unused. To prevent any issues, all sales are final and returns are not accepted. Lightweight bone conduction earphones with an open-ear design, perfect for fitness with a built-in microphone. - Model Name: C6 - Type: Bone Conduction Earphones - Features: Open-ear design, built-in microphone, lightweight, USB charging - Usage scenarios: Running, walking, fitness Thank you for viewing.