With bone conduction, you can safely listen to music while you exercise outdoors. This technology transmits the sound waves via your cheek bones. Your brain converts these waves to sound, which allows you to hear music. Your ear canal remains free, so you can still hear your surroundings. That's useful when you're running outside, for example. Earbuds with bone conduction also have an IPX value of 4 or higher. This means they're water-resistant. They can withstand sweat and rain, so they're suitable to exercise with. Want bone conduction earbuds? We have this type of earbuds from Shokz and Philips.