Documentation & Software
user guide
Knowledge Base
- SupraPlus UNC (H251N/H261N) Product Information
- SupraPlus (CS351/CS361) Troubleshooting: Headset Fits Uncomfortably
- SupraPlus Wireless: How to Replace the Battery
- SupraPlus Specification Summary
- SupraPlus Wireless: How to Set Up for Multi-Shift Usage
- SupraPlus (CS351/CS361) Troubleshooting: Beeping
- SupraPlus (CS351/CS361) Troubleshooting: Callers Can't Hear Me
- SupraPlus (CS351/CS361) Troubleshooting: No Indicator Lights
- SupraPlus (CS351/CS361): How to Mute
- SupraPlus (CS351/CS361): How to Answer a Call on the Headset
Warranty
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Limited Warranty Terms -
Headset Warranty Service