Logitech Usb Stereo Headset H650e

Features
The double-ear, corded headset with enterprise-grade audio that people actually want to use. In-call LED red-light indicator Located on the backside of the boom, this red light provides a visual alert to those behind you that you are on a call, preventing accidental disturbances during calls.1

Plug-and-play USB connectivity
Easily connects to PCs or Macs with no additional software required

Technical Specifications
Microphone: (Tx) Type: Bi-directional ECM
Frequency response: 100 Hz - 10 KHZ
Sensitivity: -45 dB +/- 3 dB
Distortion: Operating voltage: 1.4 - 5.0V DC
 
Speakers: (Rx) 
Frequency response: 50 Hz - 10 kHz( Diffuse field )
Sensitivity: 90dB ±3 dB at 1KHz, Input0.56V/10mm free field
Max output: Distortion: < 4% @ 1kHz, 0dBm0, 1kHz
 
Product Dimensions
Width: 174 mm / 6.75 inches
Height: 165 mm / 6.5 inches
Depth: 50 mm / 2 inches
 
Weight
120 grams / 4.2 ounces

Warranty - 2 year limited hardware warranty