LATEST BLUETOOTH 4.2 TECHNOLOGY: The advanced Bluetooth CSR8635 chipset gives you faster transmission and lower latency. Wireless range up to 10m. Enjoy uninterrupted phone calls and music. Compatible with iPhone, iPad, Samsung Galaxy series, Sony Xpiria, Google Nexus, Android phones, tablets and moreLIGHTWEIGHT AND WELD-RESISTANT: The unique design eliminates annoying cables so that they don't get tangled when running, jogging, cycling or exercising. The ergonomic design of the earphones ensures a perfect fit. So the headphones never fall off your ears, even if you run or jump. Absolutely sweatproof and designed for first-class comfort.SUPERIOR Hi-Fi STEREO: The headset delivers crystal-clear stereo sound in hi-fi stereo quality. Works great for soundtracks, audiobooks, and relaxing music. Free yourself from the noise and cables and enjoy the purest music LONG BATTERY LIFE: The new and improved lithium-polymer battery enables uninterrupted music enjoyment for up to 12 hours of music or 13.5 hours of phone calls with a short charging time of just 2.5 hours. Perfect for gardening for mowing, exercising, jogging, fitness and more. Enjoy your music on the go all day SCOPE OF DELIVERY: Marathon headphones [2. Generation], 2 ear pads, USB charging cable, transport box and operating instructions.