Paired my Plantronics Voyager PRO + and then a Voyager PRO HD with my S4 and in both cases the receive audio to the headset starts to have issues with a separation of only a few feet. The issue being the Rx auto is broken and slightly distorted. You only hear the issue with audio is present. If I hold the S4 to within a foot of the Voyager the audio then sounds great. I did not have this issue with the Thunderbolt. There does not seem to be a problem with the TX function. Is anyone else having this issue?