HOCOE36 BLUETOOTH stainless steel windshield can eliminate the wind noise prompt anytime and anywhere. The signal transmission is done in a faster, stable and supports the more Bluetooth devices and apps. How to pair HOCO E36 BLUETOOTH Press the power button almost 5 seconds, then the red and blue LED indicator will flash alternately with the voice prompt. You can just power to enter the pair. the signal transmission is faster for more Bluetooth devices and app. Environmental protection material, with high-quality soft material, is used and piano paint technology that would not hurt the ears with the function of anti-sweat, anti-fouling, and anti-skid.