1. It reduces background noise and can be rotated to one side when you are not using it.
2. This earphone is not limited to talking, stereo means you can also use it to enjoy movies, music, games.
3.5mm plug, easy connection, also suitable for PC sound card.
4. Adjustable headband ensures comfortable position.

Technical specifications
Sensitivity: -58dbv /uBar, -58dbv /Pa / -4db
Headphones: 20Hz - 20,000Hz
Microphone: 100hz-16,000 Hz
Six feet of shielded wire
3.5mm colour coded connector

System requirements
Windows(not Apple hardware)
Sound card with 3.5mm microphone input and audio output ports

Packing list
Headphone microphone
User documentation