AfterShokz - Xtrainerz 4GB* Wearable MP3 Player - Diamond Black

4GB* internal memoryWater-resistant

Enjoy crisp, powerful sound and a secure fit while swimming with these black diamond AfterShockz Xtrainerz open-ear headphones. Bone conduction technology delivers sound through your cheekbones, letting you hear ambient sounds. These AfterShockz Xtrainerz open-ear headphones have a rechargeable LiIon battery that offers up to 8 hours of playing time when fully charged, and Bluetooth technology allows wireless pairing with mobile devices, offering freedom of movement.