This is a mini bone conduction wireless headphone that doesn't block your ears. It's a perfect size for women and children, and is IPX4 waterproof, making it suitable for sports like running. 【Color】Navy Blue 【Features】Bluetooth, IPX4 Waterproof, Bone Conduction 【Other】10mm Driver ★Anonymous Delivery★ ★Includes Shipping★ ★Instant Purchase Welcome★ ★Ships within 24 Hours★ Please refrain from purchasing if you are concerned as it is stored at home. Please purchase only if you understand. ※Please understand color errors due to camera shooting. Please check the photos for dirt and condition. If you have any concerns, please comment. Thank you for your understanding before purchasing. It may be compressed during packaging. Please understand wrinkles, etc.