These Sansui bone conduction Bluetooth headphones are designed for running, fitness, and outdoor sports. Featuring an open-ear design, they allow you to stay aware of your surroundings for enhanced safety while exercising. Sound is transmitted through bone conduction, reducing pressure on the ear canal for a more comfortable fit during long-term wear. With an IPX8 waterproof rating, these headphones are built to withstand sweat, rain, and high-intensity training environments. The lightweight structure and skin-friendly material ensure a secure fit that won't slip, providing a stable Bluetooth connection for a safe and comfortable workout experience.