2-Wire Surveillance Kit for Vertex VX-450 & Everge 530 Series.

Two-wire surveillance kit with Kevlar reinforced cable, premium Knowles microphone, QD medical grade clear acoustic and conical pins for Vertex VX-450 & Everge 530 Series. Also compatible With: Vertex VX-261, Vertex VX-264, Vertex VX-451, Vertex VX-454, Vertex VX-459, Vertex EVX-261, Vertex EVX-531, Vertex EVX-534, Vertex EVX-539 Recommended for: Police, Fire, Military, Security law enforcement professionals. AUDIO LIMITERConforms with Occupational Safety and Health Administration (OSHA) regulations. Electronically limits audio to the users ear to a safe maximum of 90dB to prevent hearing damage. Kits also available with volume control to allow users to temporarily exceed 90dB when in louder environments. Most low cost kits far exceed safe audio levels, unknowinglycausing hearing damage. CABLINGSheathing: PolyurethaneCabling: Diameter 4.5mm, Earphone cable 3.0mm SPEAKERImpedance: 250 +-50 OhmsSPL: 97 +-3dB2-wire surveillance kit for RELM KNG Series Radio MICROPHONEType: Pie