Meet the future prepared with Sennheiser SDW 5033 - a single-sided wireless DECT headset for modern office professionals using softphone/PC. For all-day users, talk time is extended through increased battery performance, while long-term wearing comfort is enhanced with headband wearing style and soft leatherette ear pad adding noise damping to improve productivity. SDW 5033 sets new standards with super wideband audio, delivering a voice experience beyond conventional business expectations. A two microphone noise-cancelling system and pioneering own - voice detection technology deliver exceptional sound for speech intelligibility in very noisy environments. The SDW 5033 is compatible with all SDW 5000 headsets and an optional BTD 800 USB dongle adds a mobile connection. Connect a Bluetooth® headset*, a wired headset or speakerphone to the base station for additional flexibility. Enhanced security with 128-bit authentication, Protected Pairing and DECT Security certification keep conversations confidential. SDW 5063 is UC optimized and certified for Skype for Business, with smart call controls and busy light to improve productivity, while Sennheiser HeadSetup™ Pro Manager provides easy configuration and management for IT managers. *BTD 800 USB dongle needed for Bluetooth® connectivity.