Aftershokz Xtrainerz Headphones

Swimming exercises your whole body and is easy on your joints. It is popular but can be boring lap after lap. Traditional earphones need to be plugged into ears deeply and firmly to make sure ear is sealed especially with intensive body movement. The painful experience and proneness to ear infection have greatly hampered the popularity of earphones amongst swimmers. Powered by bone conduction technology, Xtrainerz swimming MP3 headphones are ears-free and eliminate these problems! With 4GB memory, up to 1,000 songs.