Sennheiser SC 660 USB CTRL Sennheiser SC 660 Headset. Sennheiser Consumer Audio SC 660 USB ML (504553), Double-Sided Business Headset, For Skype for Business with HD Sound, Ultra Noise-Cancelling Microphone, & USB Connector (Black). Brand: Sennheiser. · Model Name: Sennheiser SC 660 USB ML. · Product Code: 504553. · Colour: Black. · Form Factor: On Ear. · Connectivity Technology: Wired. SC 660 USB ML STEREO PREMIUM CENTURY Premium dual-sided wired headset optimized for Microsoft Lync, with built-in call control unit. · Designed for quality-conscious contact center and UC professionals requiring outstanding sound performance while maintaining contact with surroundings. · Comfortable fit that lasts all day and a solid sense of quality. · Built to sound superb, look stunning and outlast the competition. · Conversations are crisp and clear for speaker and listener even in noisy environments. · Century is crafted with high-end materials to ensure maximum durability and design quality. · Stainless steel hinges, brushed aluminum parts and Kevlar cables defending headset against everyday use. · Large leatherette ear-pads to the unibody headband construction for maximum strength at stress points. · Ultra noise-canceling microphone optimizes speech intelligibility in busy contact center, office and UC environments by reducing unwanted background noise · ActiveGard technology protects users from acoustic shock and sudden sound surges. · Includes fixation kit, leatherette earpad and cable clip mounted on headset. Designed with Skype in Mind: For professionals using Skype for Business, who require a consistently excellent hands-free communication solution. HD Sound: Powered by a neodynium speaker for legendary Sennheiser HD sound to ensure a clearer and more natural voice & audio experience. Easy Disconnect: Simple, quick release mechanism made to withstand the repetitive plugging and unplugging of shift changes. Noise-Cancelling Technology: Filters out all unwanted background noise for crystal-clear conversations on calls. State-of-the-Art Materials: Stainless steel hinges, brushed aluminium parts, & Vectran reinforced cables defend your headset against everyday use. In-Line Call Control Unit: Answer or end your calls, control the volume, mute your mic and redial calls - all directly from your headset. All-Day Comfort: Large leatherette ear-pads and unibody headband construction are built for maximum strength at stress points to ensure a comfortable experience. ActiveGard Technology: Ensures protection against acoustic injury caused by sudden sound bursts on the line. Easy Transportation: With foldable ear cups and the accompanying carrying case, bring your business headset wherever work takes you.