Problems with my motorola hs850

Try resetting and repairing.

H730 Reset to Factory Setting

Mark
Motorola Support

Sounds like there is a noise cancellation issue. Can you check to see if there is food or other debris in the microphone hole?

Mark
Motorola Support

Unpair and repair your headset.

Mark
Motorola Support

You can mute outgoing voice during a call by tapping on both volume buttons and tap them again to un-mute.possible you are experiencing this . i did

try re - pairing the headset with your phone. Delete the older paired profile from your phone before re pairing.

Good luck

It might be a problem with their sound setting. If their speakers are on while using the mic, they might get some feedback that could be the cause of the echo. They may even just have to tweak their mic settings (through the control panel sound options or their soundcard options).

hit the sound icon on your desktop rightclick it, go to Recoringtools turn down the microphone! As in the picture.
Im sorry its dutch :-)

no u need to take it to phone manufactuer

You did not say what phone you are using but I found that this problem went away for me when I changed a setting on my blackberry. I turned "encryption" off in the bluetooth settings on my blackberry 7100t and solved the echo problem. Alternatively, there might be a "compression" setting also. This one made no difference for me but might for you on your device. Also, make sure any firmware or software updates for your phone have been applied. On blackberry devices you do this via a PC. On cell phones it usually involves a reset or update from some buried menu options or call to their tech support. good luck.

mic connection has a short go to www.n1 wireless.com for new headset cheap