The EPOS SC 660 ANC USB Headset is a premium, USB wired headset with Active Noise Cancellation. Designed for quality-conscious contact centre and office professionals requiring outstanding sound, convenient call handling, high-quality durable design and exceptional wearing comfort EPOS is world famous for its legendary sound quality and once again it does not disappoint with the SC 660 range. Built-in EPOS HD voice clarity for wideband sound and its ultra-noise cancelling microphone deliver incredibly lifelike conversations and speech intelligibility, even in the noisiest offices and call centre enviroments. The SC 660 ANC is designed with additional Active Noise Cancelling technology and provides ANC on demand via the on/off buttons in the inline call controls.  Built to last out of stainless steel and brushed aluminium, this lightweight yet robust headset has been manufactured out of the highest quality materials. Its neodynium speakers, metal reinforced headband, large leatherette earpads and kevlar-reinforced cables ensure maximum durability and an optimimum listening experience. Heavy users can feel safe in the knowledge that the in-built ActiveGard® technology provides top level protection against sudden sound surges and acoustic shock. Features: USB Headset with Active Noise Cancelling  EPOS HD voice clarity for wideband sound USB connection for PC and softphone use Ultra noise-cancelling microphone High quality neodymium speakers ActiveGard® acoustic protection Stainless steel hinge on speaker joints for optimum strength Brushed aluminium parts for strong and lightweight design Unibody headband construction for maximum strength at stress points Kevlar® reinforced cable Large leatherette earpads Ultra sonic welded microphone housing for durability Extension headband with number indication for perfect adjustment