1. The microphone (Mic) is noise-proof and can screen 90% background noise so as to perfectly and truly present the sweet voice of the telephone operator.
2.Super clear voice communication.
3.The speaking tube can rotates by 300 degrees and can be worn on left or right ears.
4.Stainless steel head clip can stretch freely so that you can wear it comfortably.
5.Quick Disconnecting cable optional.
6.Headset with RJ9 plug, 3.5mm jack is optional.
7.Three-year free warranty is guaranteed.