Jabra Pro 920/930 Duo Heads 14401-16, Wireless DECT, Microphone Boom, Sound Output Mode Stereo, On-ear - convertible. The Jabra Spare Binaural Headset 14401-16 is a replacement binaural wireless headset for Jabra PRO 920/930. It provides boom microphone - crystal clear conversation, stereo sound output, On-ear convertible.