Single-sided wireless DECT headset with connectivity to softphone/PC. Super wideband audio, pioneering own-voice detection technology and a two-microphone noise-cancelling system provide superior and exceptional sound. Enhanced security features keep conversations confidential. Meet the Future Prepared SDW 5033 is a double-sided wireless DECT headset for modern office professionals, providing next generation communication quality, all-day wearing comfort and advanced security to modern work environments. Total Flexibility Maximum flexibility via the base station - works with all SDW 5000 headsets and connects to a Sennheiser Bluetooth® headset* or a wired headset/speakerphone Superior Sound Super wideband sound provides crisp and natural sound beyond conventional business standardsExceptional speech intelligibility with two microphone noise-cancelling system and pioneering voice detection technologyExcellent sound in high density environments with high density wideband mode Optimized for major UC brands and certified for Skype for BusinessAll-day wearing comfort with soft leatherette ear pads and effective noise dampingFull workday of talk time - up to 14 hours' narrowbandFast charging with 50 % battery in just 30 minutesUndisturbed calls with a busy light on the headset. A busy light for the desk is available as an accessory.Long distance wireless range - up to 180 m/ 590 ft with line of sight Enhanced Security Enhanced security with Protected Pairing, 128 bit authentication and DECT Security certification to keep all conversations confidentialEasy configuration and management for IT managers with Sennheiser HeadSetup™ Pro Manager All-day wearing comfort Soft leatherette ear pad provides effective noise damping. Ease of use Bendable microphone boom arm with mute button. Extended talk time Up to 14 hours' of talk time. Fast charging With 50 % battery in just 30 minutes.