Features: *1. Open-ear design closes to the ear bone, sound waves directly transmitted to the acoustic system to enjoy high-quality music while not hurting the ear. *2. Bone conduction technology delivers music through your cheekbones, ensuring ears remain completely open to ambient sounds for maximum situational awareness during long-term wear. *3. Lightweight body design with rubber hanger creates a golden triangle wearing stability, long-wearing without pain, wear it without falling when you do sports. *4. The large dynamic diaphragm is used for directional audio transmission without loss, creating a realistic surround sound field. *5. TPE material, skin-friendly, non-irritating.