I now have 2 Voyager Pro+ wireless ear pieces that have quit working within 2 months of activation. No LED light at all when hitting the on/off switch, when power is plugged in no LED on one, I get an LED on the second headset. I cannot turn either one on.

No reset button, they must be defective.

It sounds like you have a communication problem between headset and base. This link of the user guide can walk you through some things you can do to make it better, especially page 5 (powering headset on / off, compatibility) and page 6 (pairing).

Plantronics Voyager 510S User's Guide

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The link below for the Plantronics Voyager Pro+ has the information you're longing for. Look under "Mix and Match for Best Fit."

Plantronics Voyager Pro+ User's Guide

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One thing you can try is to power down and then power the headset back up. The instructions are on the link below for the Plantronics Voyager Pro, particularly the page "Listen To The Voice."

Plantronics Voyager Pro User's Guide

If that doesn't help, then you have a bad processor in the headset. It's still under warranty so contact Plantronics at 800-544-4660 x5 x5538 for warranty service.

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Please remember that newer phones are like small computers, so they may become corrupt over time and you may need to reset them every so often. Simply turn your phone off and remove again the battery for a few seconds, then replace the battery and turn it back on again. Purge from the phone any pairing information for your Voyager Pro headset and pair it again with your phone, following the instructions on the link below for the Plantronics Voyager Pro.

Plantronics Voyager Pro User's Guide

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The link below of the user guide for the Plantronics Voyager Pro has the instructions for removing and attaching ear buds.

Plantronics Voyager Pro+ User's Guide

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Just flip the headphone pad inside out on the Optimus Pro 100 wireless headphones.
Find the 3 screws on each headphone speaker, you have to push the existing cover back, but you'll find them. Remove the 3 screws. Be careful of the speaker wire that will be attached to the cover plate that has the ear pad on it. Also, look carefully at how the components are assembled inside the headphone, as you might disturb their setting. They are easy to return to their proper place if they move.
Gently remove the ear pad, turn it inside out and you will have a new covered ear pad. GENTLY, re-install ear pad onto speaker plate, be careful not to break the speaker wire that is attached. I found a little flat screwdriver helps to pull the edge of the pad over the plate. The ear pad is actually quite strong and can take some abuse, but don't pull the speaker wires loose.
After you have the cover back on, find the screw holes and put the 3 screws back in. Presto, a little cleanup on any loose pieces of covering from the original side and your done for another couple years or so.

reconfigur headset with phone

that head set you have bourght, has a different pins for a mouth piece. (mic)
open the equipment and the three wires if its sterio, tip, ring and sleeve. sleeve is ground for both a mic and ear piece.
or check the ear piece wires with the jack connected to the set. use contnuiety resistance.

JUST HOLD DOWN THE MIDDLE OF THE EAR PIECE FOR EIGHT SECONDS