Tenq&reg; Acoustic Ear Tube Surveillance Kit for Kenwood Tk-180 Tk-190 Tk-280 Tk-285 Tk-290 Tk-380 Tk-385 Tk-390 Tk-480 Tk-481 Tk-490 Tk-2140 Tk-2180 Tk-3140 Tk-3148 Tk-3180 Tk-2260 Tk-3260 Tk-5210 Tk-5310 Tk-5220 Tk-5320 Tk-5400 Tk-5210g Tk-5310g Tk-5410 Nexedge Nx-200 Nx-210 Nx-300 Nx-410 Nx-411 2 Wire Earphone kits with Vox function Lightweight earphone,rubber ear tip Low profile, flexible, transparent acoustic tube Quick disconnect earphone adapter for easy replacement of any component Flexible, high grade Kevlar cable for demanding applications