NEC compatible Plantronics Encore PRO Direct Connect Mono Wideband Headset, HW291N, | Compatible with NEC office phones, VoIP | iLV(XD)Z-Y(BK), dLV(XD)Z-Y(BK), dt700, dt300,
Plantronics Polaris Headsets; Plantronics Headsets for Meridian Phones, etc.
Amazon.com: Plantronics Explorer 500 Mobile Bluetooth Headset - White : Cell Phones & Accessories
Explorer 100 Data Sheet
Plantronics Headsets Archives - Wholesale Telecom Inc.