The big advantage: 11 hours streaming

Looking for a new headset to longer than the usual 5 hours at models of this size as my Plantronics M155 also manages stream can.
The indication of 11 hours, I could not believe (the time of purchase, this was specially highlighted in the product description here now summarized to 11 hours talk time), but in fact, the headset it schaffft to stream 11 hours music or sound track for the film. Pleasant: It does not take place long before a stark reminder that the battery soon is out. Many would find useful, the model M155 it is so.

The sound, however, the M155 better (but also costs about twice), and the volume (who needs it and wants to) is the M155 lot deafening (but is not decisive, both can be so loud switch that you would not normally will endure).

What you could have done to put pages Plantronics in the scope of delivery can, would be differently sized silicone parts for the ear. When M155 this was the case. Whereas the presence here was too big for me, so that the headset is constantly fell out of the ear and has only fitted with Silkonteilen in size S.