Wired On-Ear Headset With Noise Cancelling Microphone Black

Features:
ergonomic design:
adjustable headband length, soft ear cushion for maximum wearing comfort, suitable for different head size wearing.
multi-purpose headphones:
fits for making office business conference calls, call center phone calls, speech dictation, online courses, language learning, etc.
noise canceling microphone:
built-in noise-canceling rotatable microphone can block out unwanted background noise for precise voice picks-up, ideal for clear conversation.
wide compatibility:
usb plug and play, no external power or drive needed. Compatible with desktop computers, laptops and other usb audio devices.
in-line control:
with in-line control, you can easily control volume up and down, mute mic and mute speaker.
specifications:
drive unit: 40mm
rated power: 20mw
operating voltage: 3.7V
working current: 0.3-1A
mic size: 5.7Mm*5.2Mm±0.5
mic sensitivity: -36db±3db
directivity: omnidirectional
frequency range: 20-20khz
sensitivity: 103±5db
impedance: 32ω±10%
input plug: usb plug
color: black
cable length: 1.8M±0.2M
main item weight: 146g/5.15Oz
package size: 17.7*14.5*7.2Cm/6.96*5.70*2.83In
package weight: 187g/6.59Oz
package list:
1 * usb headset