bone conduction headphones waterproof H-902-5

It is a transmitter+ a receiver swim training gadget with bone conduction headphone, solves the communication problem between swimmer and coach during training. The Bone Conduction headphone provides the best quality sound, a stylish design, and is our most popular product. It carries an IPx10 waterproof rating and is available in several stunning colors. It is astounded for deaf at the difference in sound from using these headphones. http://www.szrisest.com