I was looking for a Bluetooth headset for two aspects: hear phone calls and music / podcasts. Since I am traveling for work a lot with the car and therefore more frequently on the phone in the car, I was the one looking for a good headset. The second aspect is that listening to music at the gym. Always bothered me untangling the cable and the constant drop of the phone or keep in his pocket and the slack of the cable in the exercises on equipment. I had previously already Blutetooth headset from Jabra. This clashed not with my new phone, saying it was no longer recognized. The Jabra itself was good, but that bothered me memorizing / distinguishing the different sounds in order to know in which mode the headset is just. I chose after reading some reviews on the Plantronics M50 Bluetoot headset. I am very satisfied with the device for the following reasons: 1.Sehr good sound and comfortable fit (overtime pushes nothing). 2.For regular use -Podcasthören and Fitnessstudio- I have now for the first time charged (by two or three weeks), the battery lasts really looooong. 3. For me sufficient range of about 7-8. I put it in the studio somewhere with my water bottle every now and then wander from my device and listen to my music training. Every now and then I'll get it back to get closer, but it is no cables aspects -very comfortable. That's how I wanted it! 4. The headset "says" to me in what mode it is in. Eg "Battery high / medium / low, Phone 1 connected". 5. Separate on / off button. 6. voice quality when making calls is really good. I am very happy with the headset and can recommend it.