EPOS | Sennheiser SC 660 USB CTRL ML 

Dual-Sided Wired Headset

Optimized for major softphone brands - with integrated call control and USB connector
Sennheiser voice clarity - wideband sound for a natural listening experience
Ultra noise canceling microphone for perfect speech transmission
Sound-enhancement profiles - perfect for communication and music
Dual-sided high-quality neodymium speakers for outstanding high definition stereo sound
Optimized for major softphone brands - with integrated call control and USB connector
Sennheiser voice clarity - wideband sound for a natural listening experience