Overview
The Logitech H540 wired on-ear, double-sided USB headset connects via USB Type-A to your computer. A noise-canceling microphone on a boom arm helps ensure that only your voice is picked up in any environment, on-ear controls and mute indicator light make it easy to see when the mic is muted.

Logitech H540 Wired Headset Specifications
| Wearing Style: |
Headband |
| Microphone Type: |
Bi-directional |
| Input Impedance: |
20 Ohms |
| Sensitivity (headphone): |
115 dB ±3 dB |
| Sensitivity (microphone): |
-42 dBV/Pa ±3 dB |
| Frequency response (headset): |
20 Hz - 20 KHz |
| Frequency response (microphone): |
100 Hz - 16 KHz |
| Compatibility: |
Windows, macOS, Chrome OS and popular calling platforms |
| Warranty: |
2-year Limited Hardware Warranty |
| Size: |
7.09-inches high, 8.46-inches wide, 3.07-inches deep |
| Weight: |
4.23 oz. |
| Cable Length: |
5.91 ft (1.8 m) |
| System Requirements: |
An available USB Type-A port, or a USB Type-C port using a Type-A to Type-C adapter |