Crystal clear sound, attributed to elements of gold plated contacts of speaker, NC microphone, Kevlar-reinforced cable, top-grade chipset, can be guaranteed for 3 years without decline in performance. Up to 85% noise cancelling of background noise, make the person who on the other phone side hear more easily and clearly. PeakStop technology protects your ear hearing
Noise reduction microphone, the current 70 ~ 150uA; sensitivity controlled at +/- 2 dB; frequency 20HZ ~ 10KHZ;
Microphone can withstand various damage tests: high temperature, low temperature, high temperature and humidity, shock, vibration, drop, tension, static electricity - to ensure that the microphone work well in demanding environments.
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