**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 style Easy magnetic docking and charging Technical Data Talk time 12 hours Standby time 100 hours Charge time 1 hours Operating Temperature Range 5 C - 45 C Storage Temperature Range -20 C - 70 C Range (line of sight) 180 meters Range (office use) 55 meters What's in the box Ear Hook, Headband, Base Station, Power Supply, USB Cable ActiveGard technology Yes Certification Microsoft Skype For Business EU Noise at Work Limiter Yes