INDUSTRY-LEADING BLUETOOTH 4.1: Advanced Bluetooth CSR 8635 chipset provides you a faster transmission and lower latency. Wireless range up to 10m(33ft). Enjoy skip-free phone call and music. Compatible with iPhone, iPad, Samsung Galaxy Series, Sony Xpeira,Google Nexus, Android Phones, Tablets and more. LIGHTWEIGHT AND SWEATPROOF:The unique design eliminates troublesome wires tangling or flapping around when running, jogging, cycling or working out, and the ergonomic design of the earbuds provides a snug fit; never falling out of your ears even when rushing or jumping.Totally SWEAT PROOF and designed for superior COMFORT. SUPERIOR Hi-Fi STEREO:Hi-Fi stereo quality delivers you crystal clear stereo sound. Works great for soundtracks, audio books, and relaxing sounds, just stay away from the noise and wires, and enjoy the purest music! LONG BATTERY LIFE -The new and improved lithium polymer battery allows continuous enjoyment of music for up to 12 play time/ 13.5 talk time with a quick charge of only 2.5 hours. Perfect for mowing, exercising, jogging, workout and more. Enjoy your music on the go all the day! PACKAGE CONTENTS: Dylan Marathon Headphone[2nd Generation], 2 earpads, USB charging cable, travel case and user manual. The product has a 12-month hassle-free satisfaction warranty which means a totally risk-free purchase. Just feel free to contact with our excellent customer service.