Patriot Patriot-NC K1 Noise Canceling Surveillance Headset Kenwood TK-208, TK-220, TK-240, TK-240D ,TK-248, TK-249, TK-250,TK-253,TK-255, TK-260, TK-260G, TK-270, TK-270G,TK-272, K-272G,TK-273, TK-278, TK-278G, TK-308, TK-320, TK-340, TK-340D , TK-349, TK-350, TK-353, TK-360, TK-360G, TK-370, TK-372, TK-370G, TK-372G,TK-373G, TK-378, TK-378G, TK-388 TK-430, TK-431, TK-630,TK-715, TK-730, TK-830, TK-2100, TK-2101,TK-2102, TK-2107, TK-2118, TK-2160,TK-2170, TK-2173, TK-2200, TK-2201, TK-2202, TK-2200L, TK-2202L, TK-2206, TK-2207, TK2300 ,TK-3100, TK-3101, TK-3102, TK-3107,TK-3118, TK-3130,TK-3131, TK3160, TK-3170, TK-3173, TK-3200, TK-3200L, TK-3202L, TK-3201, TK-3202, TK-3206, TK-3207,TK-3230,TK3300 DIRECTIONAL Microphone. Reduces Background Noise Dual Front-Facing PTT Buttons-easy to hit PTT when grappling or wearing gloves Kevlar Reinforced Cabling Clear Audio Acoustic Coil Tube (black tube optional)