The Shokz OpenSwim Bone Conducting Swimming MP3 Headphones in Blue are a cutting-edge pair of headphones designed specifically for swimmers. With a frequency range of 20Hz-20KHz and surround sound capabilities, these headphones provide high-quality audio while being completely wireless and water-resistant. The neckband design and ear-pad form factor make them comfortable to wear during long swimming sessions. The rechargeable battery and volume control features ensure you can enjoy your music anytime, anywhere, while the touch control functionality makes it easy to operate. Overall, these headphones are a must-have for any swimming enthusiast looking for a great audio experience underwater.