Wireless Bluetooth Earphones Sport Music Cal Baseball Cap Ourdoor Headset blue :

Voice chat and communication is barrier-free.

The reception signal is stronger, the answer telephone is clearer.

Lining with mesh is breathable sweat absorbing, in outdoor sports, good for perspiration and ventilation.

A small pocket that holds earplugs for easy use when the outlet is not in use.

Bluetooth detachable design is user-friendly, when the hat dirty, bluetooth can be removed for cleaning.