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How do I change the battery for my Jabra PRO 9400 Series headset? One of the great features of the Jabra PRO 9400 series wireless headsets is that the battery can be easily replaced, extending the life of your headset for years.  To change the battery you will need a battery replacement kit for Jabra PRO 9400 series headsets, which includes a new replacement battery and a small torque screwdriver. Remove the headband from your headset. Jabra PRO 9450 Mono / Jabra PRO 9460 Mono / Jabra PRO 9470 Mono: Jabra PRO 9450 Duo / Jabra PRO 9460 Duo /...

If you purchase a headset for your Polycom telephone and when plugging into the headset port of your Polycom phone it does not work, you may have to set-up the headset port to accept a headset.  If you have never enabled the headset port for a headset, you need to activate it in order to use a headset on your Polycom VVX400-VVX410 Phone.  Listed below if a PDF with instructions we found to be very helpful in assisting a user to activate the headset port themselves, saving the need to pay your Polycom phone supplier from coming out and setting...

You can use your old equipment to trade into a Brand New Smith Corona Headset. For each old headset you send in, you will receive $10.00 right off the top on the purchase of a brand New Smith Corona Headset.  No rebates to wait for, instant credit at time of purchase. CONTACT HEADSET WORLD USA and we can assist you with the simple process.  All their equipment is fully compatible with the other major manfactures brands like Plantronics aka Poly, or Jabra and VXI G and P series Headsets.   Want to take advantage of the trade-up program, contact us...