• With Ambient Sound Mode you can still hear a degree of external sound so you can talk to a friend or trainer while listening to music
• Salt-water / dust proof (IPX65/68 rating) design for use with an increased range of sports
• 12 hours battery life
• All-in-one design MP3 Player
• The compact, head-hugging design provides a secure, comfortable fit - so your Walkman stays in place no matter what