Model Number: HX-Z05-#4383 Brand Name: OEM Key Specifications/Special Features: Temple conduction speaker headset suitable for very noisy environmentReceives audio via facial bonesBig round PTT design, with big revolving clips and waterproof level IP55PU cable with Kevler and compliant with the RoHS DirectiveAvailable for all kind of two-way radio plug, (Motorola, Kenwood, ICOM, Yeasu, hyt)