Unfortunately, a bad design - Not for heavy users

This time I gave Plantronics a chance because it seemed to me better on the model and the good reviews ago as the current models of the competition.

The device works flawlessly with my Android phone and does essentially what is expected of him.
The additional function to answer calls by voice is, I have not yet succeeded. But is not critical.
Sound quality is also good on both sides.

Unfortunately, the unit but a design flaw that makes it completely useless for me:
The entire outside of the headset is one big, very smooth, button. This is used to answer and end calls and (!) To trigger the redial.

The latter means that you have to turn off the headset before it is in the jacket or trouser pocket. Otherwise it solves regularly from talks. I have made in the course of two weeks of such a large number of unwanted calls. The stopgap, turn off the power does not make sense, because you then every conversation has to take until the cell phone, and then switch to Headset, which is also unpleasant.

For this reason, the thing went back to Amazon and I've replaced it with the only minor expensive Plantronics Marque 2. There instead a small round button that you can not accidentally press. Otherwise, in the largely identical functions.