-Soft stretchable material for maximum fitness. -2 in 1 design,more convenient and wireless bluetooth headset connection to listen to your favorite songs,hands free to answer or hange up the calling. -The LED lights on the hat provide great convenience in dark environments. -Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time. -Perfect Fit for outdoor hiking,jogging,skating,cycling,dog walking,waiting for bus in the winter etc.
