Bone conduction wireless earphones with a digital display, IPX4 waterproof rating for safe use. - Display: Digital display - Model Name: Bone Conduction Wireless Earphones - Waterproof Rating: IPX4 - Accessories: Instruction manual - Price: Purchased for ¥2,500. Safe and comfortable fit that doesn't block your ears, allowing you to hear surrounding sounds. - Enjoy music simply by hooking it behind your ears. - Lightweight (approx. 30g) and compact, making it easy to carry. - Equipped with a microphone for hands-free calls. Product Condition USB cable not included. Will be fully charged before delivery, but may slightly deplete. If you don't need the box, only the instruction manual and the main unit, I will offer a small discount.