The Pryme 2300 Series 2-Wire Braided Fiber Surveillance Earpiece is backed by a 1-year manufacturer's warranty. It is equipped with braided fiber cabling, swivel connect acoustic audio tube, and a noise reduction microphone. Compatible with VX-130, VX-160, VX-180, VX-210, VX-210A, VX-261, VX-264, VX-400, VX-410, VX-420, VX-354, VX-451, VX-454, VX-459, VX-230, VX-231, VX-350, VX-351, VX-417, VX-427, VX-450, VX-426, EVX-530, EVX-531, EVX-534, EVX-539 and (eVerge) two-way radios.