A:Answer Hey Ann! Aeropex is rated IP-67 which means it can be submerged in water up to a meter deep for thirty minutes; however, we don't recommend it for swimming. All Bluetooth devices use 2.4GHz radio frequency, which does not work well in water; this is due to laws of physics, as water molecules attenuate the signal; when any Bluetooth device is put underwater, the range is just few inches. If you're looking for headphones you can swim with, we recommend Xtrainerz. We designed Xtrainerz with this in mind, fully understanding the limits of Bluetooth capability, that is why the Xtrainerz is MP3 capable only.