Nothing else. Right the distance is from my head to my waist. Bluetooth range is about 33ft on average. However, U just read the following on the Plantronics website about this issue...
"
To all - unfortunately, as mentioned above, it is true that some users have reported issues with Bluetooth headsets and the newer iPhones (4/4s/5). It is also true that there is no way to update the firmware on the M50/M55, as these headsets are not supported by MyHeadset Updater. You may want to contact Apple or visit some of their forums to see if they have any troubleshooting advice on this issue."
I am returning the Plantronics to Amazon today.
Thanks for your reply. Mark