EPOS I Sennheiser IMPACT D10 USB ML DECT Wireless Headset, Monural, 12 Hours Talk, Quick Charge, Convertible, Noise Cancelling Microphone, Teams**USB Connection only Perfect for Yealink T5W IP Phones or PC direct Connection ** Bring wireless freedom within reach with a DECT solution that delivers clear, natural sound and the flexibility to move around your office. All day comfort and a choice of wearing styles completes this uncompromising audio solution. Key features Ensure premium audio for clear calls Move freely with powerful wireless reach Connect simply to one device Choose your wearing