Andrea EDU-455-USB Over Ear Stereo Computer Headset with USB-A Connector

• Microphone/Speaker Plug USB 
• Microphone Input - 1 Channel
• Audio Output - 2 Channel-stereo
• Noise Cancellation - 5 dB/octave
• Frequency Range - 100-10,000Hz
• Electrical Signal-to-Noise Ratio - >60dB
• Sensitivity at 1kHz (0dB=1V/Pa) - -44dB
• Current Consumption - <0.5mA
• A/D Conversion Resolution - 16 bit
• THD + N - -76dB
• Frequency Range - 50,20,000 Hz
• Coil Resistance - 32 ohm
• Sound Output from 1kHz 1mW Input (0dB=20µPa) - 114dB
• Maximum Input Power - 40mW
• Passive Noise Reduction - >13dB

The Andrea Communications EDU-455 USB Over-Ear Headset offers unparalleled speech and sound clarity. The exclusive noise-cancelling microphone with internal windscreens, which minimise breath popping, has been awarded the coveted "6 Dragon" rating for speech accuracy by Nuance. The heavy duty rigid boom and swivel allow for perfect microphone placement. Extra-thick leatherette ear cushions block out surrounding noise. An adjustable dual headband ensures a comfortable fit even on smaller heads.

• Proprietary noise-cancelling microphone with internal windscreens.
• Heavy duty rigid microphone boom and swivel.
• 40mm speakers with deep bass sound deliver crystal clear audio.
• Large circumaural (over-ear) cups reduce up to 75% of background noise.
• Plush, extra-thick leatherette ear cushions are easy-to-clean and replaceable.
• Adjustable dual headband for a comfortable fit.
• Convenient in-line volume control.
• Extra-long 8-foot cable with external USB sound card and USB plug Well-built and cost-effective.
• Well-built and cost-effective.
• Certified safe for use by children in accordance with the United States Consumer Product Safety Commission.

Compatibility:

• PC: Windows 8, Windows 8.1, and Windows 10
• Apple: Mac OS X 10.5 and higher
• MacBook with USB-C ports require C-400 USB Type C Adapter for USB connectivity