Zeadio 3.5mm Plug Open Helmet Full Face Motorcycle Bike Helmet Audio Radio Headset Earpiece Kit Microphone for Iphone 5 5s 5c 4 4s Samsung Galaxy Note 2 Ii S4 SIV S3 Siii S2 SII N7100 I9500 I9300 Etc. Designed Specifically for Outdoor Biking and Cycling Conditions Blocks out Wind and Noise in Extreme Road Environment Keep away from phone radiation PTT button with velcro which can be fixed to handlebar is convenient to use. Dual Sided for increased sound and clarity