Sanwa USB Headset / Headphones MM-HSU03BK

One-ear overhead type USB headset suitable for call centers.;It is a simple connection just by connecting to the USB port.;Light and comfortable to wear, it is ideal for long-term use.;The noise canceling microphone which is hard to pick up the surrounding noise is adopted.;Microphone mute + volume adjustment can be easily done with the hand switch. Comes with an incoming / outgoing button compatible with Microsoft Lync.;Format: Dynamic type 40mm (monaural) Frequency band: 100 ~ 5000Hz Impedance: 100Ω ± 15% Maximum input: 40mW;Type: Capacitor type Directivity: Bidirectional Frequency band: 100 to 8000Hz Impedance: 2.2KΩ Input sensitivity: -41dB ± 4dB (0dB = 1V / Pa 1KHz) -61dB ± 4dB ( 0dB = 1V / ubar 1KHz);Connector shape: USB A connector (compatible with both USB 2.0 / 1.1) Size: W150 x D47 x H150mm Cable length: 1.8m ± 0.2m Weight: 110g (including cable)