Specially for kinds of vehicle station and communication equipment work in high noise surroundings. customize is available

 Model:NDC-5

Alternating current  impedance	600(1±15%) Ω   ( 1kHz) or 300(1±15%) Ω   ( 1kHz)
Sensitivity	≥2.5mv/Pa (1kHz)
Frequency Response Range	200Hz-4000Hz

use:Specially for kinds of vehicle station and communication equipment work in high noise surroundings. 

Durable noiseproof handset for communication