Just received this last night. I have the Motorola E815 and the set up process was simple and straightforward. Was familiar with the earpiece in a matter of minutes.With regards to the echo others hear. I did ask people if they heard anything and it was an intermittent issue. But overall this is an issue with most BT earpieces and very minimal when you lower the earpiece volume.For the price I picked it up for (25.00) this was a steal and impossible to go wrong.