IPX8 Waterproof: High-level water-resistant makes it suitable for sports such as bathing, surfing, running, skiing. The inner nano-coating makes it possible to immerse in water of 1.5 meters deep for 30 minutes without affecting the performance. Coiled Earphone Cords: Convenient use without any tangle(16-35cm extended length). There sizes(S/M/L) of eartips for swimming and two for general use give you a good fit and more choices. Extension Cord: Comes with 3.5mm male to female stereo audio cable(1m long). Extends the connection between AGPTEK waterproof ear buds and your music devices.