Sennheiser SC 230 USB is a robust, single-sided, wired, soft phone headset designed for Unified Communication professionals in Contact Center and Office workplaces. Sound leadership - With Sennheiser Voice Clarity and noise-cancelling microphone, the SC 230 USB optimizes speech intelligibility in noisy environments to deliver a clearer, more natural conversational experience during calls. Quality design - Built to last, the SC 230 USB is with its durable construction designed for years of continuous use. Its lightweight, metal reinforced headband with numbered grooves gives a personalized fit and a fully adjustable, bendable boom arm positions the microphone perfectly. User focus - Designed for all day use, the SC 230 USB features a CircleFlex® dual-hinge ear cup with soft leatherette ear pad for long lasting user comfort. Sound enhancement profiles adjust automatically for optimal voice or multimedia experience while Sennheiser ActiveGard® technology protects users from acoustic shock and sudden sound surges. Additionally, a nylon carry pouch for transport or storage is included to protect the headset when not in use.