Intraural: In-ear headphones made with sustainable materials such as certified wood and hemp that adapt to the anatomy of the ear and provide greater ergonomics and sound quality. Call control: Built-in microphone and call control, answer calls with just one click thanks to the microphone built into the cable itself made from natural hemp. Design: Earpiece with sustainable wood body in cherry wood provides a quality finish. Carrying bag: Includes a sustainable material carrying bag to take the headphones wherever you want and won't get scratched. Connectivity Type: Wired