Jabra's 9400 Series are designed for Unified Communications (UC). Take every call on the same headset. All 9400 series headsets connect to your desk phone, softphone and mobile phone - all at the same time. The touch screen on the headset base station allows you to manage multiple calls. Wireless DECT technology lets you roam up to 450 feet (150 meters) away from your desk without dropping the call. Answer and end calls remotely while multitasking around the office.