Poly/Plantronics 2.5mm to QD 10' Coiled Cable 70765-01
Plantronics 2.5mm Sub-Mini Plug to RJ9 Modular Plug Cable for Wireless Headsets 5033588028406 | eBay
Plantronics 2.5mm to RJ-9 Adapter Cable 78333-01
Male 2.5mm to Male RJ45 Adapter Cord
2.5 mm headset, Headset with a 2.5mm headset adapter cord( 6ft long curly headset jack)
PLANTRONICS 2.5mm to 10ft Coil QD CABLE ADAPTER 70765-01
Plantronics 2.5mm Headset Adapter Cable for iPhone and Smartphone
Plantronics Quick Disconnect to 2.5 mm Cable 64279-02 B&H Photo
Plantronics Quick Disconnect 10' Cable to 2.5mm 70765-01 B&H
Audicom 2.5mm Headset to Cisco Phone Adapter - 2.5mm to RJ9/RJ10 Converter for Cisco Unified Telephone IP Phones 7931G 7940 7941 7942 7971 and Plantronics MX10 Vista Modular Adapters (H25-CSB) - Newegg.com
Converter Adapter | Converts RJ-9 to 2.5mm for phones that have a 2.5mm jack., (2200-11095-002) | Use with APP-50, APP-51 EHS for Polycom, Connecting telephone devices to 2.5mm headset mini jack
Plantronics QD to 2.5 mm Headset Cord for Cisco SPA IP Phones (64279-02)
2.5mm or 3.5mm Short QD to Headset Adapter Cord
Plantronics QD to 2.5mm Plug Adapter for H-Series Headsets