. They have clever buttons that you can use to quickly skip songs or answer a phone call.
From Amazon
SHOKZ OpenSwim(formerly Xtrainerz) Swimming MP3 Headphones, Open-Ear Bone Conduction Headset, IP68 Waterproof, 4 GB Memory, MP3 Player For Swimming, Surfing, Running【No Bluetooth】(Black Diamond)
This product is also available at 4 unverified merchants.
Too expensive? Get a notification as soon as the price drops.