Compatible with global providers - with integrated call control and USB connectornSennheiser HD voice clarity - wideband sound for a natural listening experiencenNoise canceling microphone - filters out ambient noise for optimum speech claritynHigh-comfort - large ear pads in a lightweight headset for relaxed wearingnDual-sided wearing style - for stereo HD sound reproduction in noisy environmentsnSennheiser HD voice clarity - wideband sound for a natural listening experiencenNoise canceling microphone - filters out ambient noise for optimum speech claritynHigh-comfort - Dual sided, with large ear pads in a lightweight headset for relaxed wearingnCall control features: answer/end a call, volume up/down, microphone mute, redial last outgoing call and reject incoming callnBendable boom arm - ensures microphone position is always optimal. Cannot be twisted out of positionnPivotable boom - rotates through 340 degrees for wearing flexibility on right or left ear and precision microphone placementnActiveGard - technology protects you from acoustic shock and sudden sound surgesnPeace of mind - 2-year international warrantynThe SC 60 USB CTRL is a deployment-friendly, dual-sided headset optimized for Microsoft Lync. Features include noise-canceling microphone and large comfortable ear pads. The SC 60 USB CTRL is designed for users requiring Sennheiser stereo sound and call control when working in a Unified Communications environment.