LOGITECH H540 USB HEADSET

Laser-tuned drivers and built-in equalizer for precision audio. USB-A plug-and-play connectivity lets you instantly enjoy music, movies, and calls in rich, digital stereo sound. On-ear controls and mute indicator light make it easy to see when the mic is muted. Input Impedance: 20 Ohms Sensitivity (headphone): 115 dB +/-3 dB Sensitivity (microphone): -42 dBV/Pa +/- 3 dB Frequency response (Headset): 20 Hz to 20 kHz Frequency response (Microphone): 100 Hz to 16 kHz Cable length: 1.8 m Connections: USB-A compatible (1.1, 2.0, 3.0)