Give call-heavy teams a dedicated wireless headset that stays focused on voice. Lenovo SD 20 uses DECT wireless connectivity, a format valued in enterprise environments for stable communication and reduced interference compared with crowded consumer wireless bands. The headset-only configuration makes it a practical choice when you already have the rest of the SD ecosystem or need a replacement headset for an existing deployment. This model is aimed at organizations that want a purpose-built communications device rather than a multipurpose audio accessory. Its business-first design supports softphone users, customer service agents, and internal collaboration roles where clarity and mobility matter more than entertainment features. The headset-only approach also helps procurement teams standardize replacements without buying unnecessary components. Because only verified product data is available for this MPN, the SD 20 should be positioned as a focused DECT wireless headset for enterprise voice workflows. It is a strong fit where reliability, compatibility within a managed headset environment, and a clean deployment model justify the investment.