The Verbatim Mono Headset with Microphone and In-Line Remote combines clear sound, lasting comfort and versatile functionality that make it perfect for plug-and-play use in a variety of applications.The headset's ergonomic design features an adjustable headband with a soft foam cover on the earpad for long-lasting comfort.The rotatable microphone is easy to position for optimal speaking quality, designed to be worn on either the right or left side, then swings up and out of the way when not in use. An in-line remote control enables you to adjust the volume, answer and end calls and turn the sound or microphone on and off.Features:•Mono headset delivers clear sound•In-line remote control enables you to adjust the volume, answer and end calls and turn the sound or the microphone on and off•Adjustable headband ensures a comfortable fit for any head size•Soft foam earpad covers provide lasting comfort•Rotatable microphone swings up and out of the way when not in use•Universally compatible with 3.5mm audio jack•Verbatim has been a leader in data storage technology since 1969. br>Specifications Headset:Driver Unit: 40mmImpedance: 32ΩSensitivity: 110±3dB (at 1mW/1Khz)Frequency Response: 20Hz-20KHzMax Input Power: 100mWLength of Cord: 1.6MSpecifications Microphone:Microphone Unit: Φ6*5mmImpedance: 2.2kΩSensitivity: -58±3dBFrequency Response: 30Hz-16KHzDirectivity: Omnidirectional