-Use cotton and acrylic material, More flexible and good looking -Support Hi-Fi signal transmission, CSR chip, well performance -The thinnest Bluetooth Beanie in the world, very convenient to be wear -Available for all languages to be set into the device with sound remind function, easy to be used. -Easy to take the electronic parts out of the hat while the hat is dirty. -Just press the mid button to pick up the phone while somebody calling, press it again to hang it up. -Set into rechargeable Li-ion battery, easy to be charged via micro 5pin USB cable. Unit size: 20x15x3.5CM G.W: 160G
