PC CABLE ADAPTER VOICE CARD TO HEADSET - Office Depot
3.5mm Single Audio Jack Connecting Qd Cord Adaptercompatible With Plantronics Headset Or Jabra - Buy 3.5mm Adapter,3.5mm Qd Cable,3.5mm Cord Product on Alibaba.com
Amazon.com: USB Adapter Compatible with Any Plantronics or TruVoice Wired Headset with a QD and Includes Volume Control and Mute Functionality (Connects Headset to PC, Laptop and Softphones) : Electronics
Mobile Headset Adapter for Plantronics M10/12 Amplifier