Top features of the Sony WI-SP600NP Wireless Sports Headphones: Ready for sweat and splash-proof with an IPX4 rating, the WISP600N Headphones can handle sweaty workouts or running in the rain, Soft-cushioned design keeps the earbud securely and comfortably in place. You can also adjust them so they perfectly fit your ears; Digital noise cancelling blocks unwanted sounds. Choose Normal mode for when you’re outside so you can safely hear traffic and your surroundings; Just touch your NFC-enabled devices against the earphone’s N-mark for a quick, seamless connection. No NFC? No worries. You can still easily connect with Bluetooth and enjoy perfect streaming. You can also adjust the audio directly from your smartphone, just download the Sony Headphones Connect app and set up your personal sound settings. Fancy a bit more bass? Hit bass boost for a deeper sound.