Bluetooth headset topic

Hello. I have this bluetooth headset from Jabra which i'm using at field work. Before htc m8 i had oneplus one phone. When i was using Jabra with oneplus i had no problems with noise in the background and people could hear me very well with no complains. Now i have switched to HTC M8 and with same Jabra headset people are very complaining about the noise and bad hearing. I had the same problem with HTC M7. I also have Lava XOLO and headset works withouth problems with that phone. So i guess i only have problems with HTC phones. Could someone explain me what is happening? I'd really like to use my headset with HTC with no noises in the background!

Thanks