USB port: Plug < Play for easy and quick use Convenient call control with connect/disconnect, mute, volume adjustment Sample rates up to 48 kHz Resolution 16-bit voice/audio DSP, support EQ and AGC LED indicators for Connection and muting Compatible with USB-enabled Snom desk phones and PCs (Windows, Mac OS, Linux) The headset can be easily disconnected using Quick Release (QR) without interrupting the active call Length: 1.7m