FOS900-K-SH Fiberoptic Earplug-- 'Intrinsically Safe'

'Intrinsically Safe' Fiberoptic earplug with Type K frequency response for expanded response in an earplug. Interchangeable foam or flanged tips compatible with Shure Model E2 earplugs. 850nm multimode fiber operation for low cost. Suitable for driver to earplug distance up to 500m. Standard 30m length of 62.5/125 multimode fiber with 1.6mm jacket. Requires driver unit Model FOSD900-Mono or Model FOSD900-Stereo