Featuring a truly unique sporty design, the Nura Nuraloop Wireless Bluetooth Noise-Cancelling Sports Earphones are water and sweat resistant, so you can wear them indoors or out, whatever the weather.The Nuraloop adapt their sound to suit you personally. Then when you listen to music, they'll match your hearing so you'll get excellent sound quality from all your favourites.With active noise cancelling you can block out all outside noise and get truly immersed in your latest playlist. If you need to let a bit of the world in, switch to social mode.With a 16-hour battery life, the music can flow all day. But if they are running low, a quick 10-minute charge will give you another 2 hours of playtime.