Absolutely brilliant and thoughtful ..

After perpetual search for a suitable replacement, I found the M50.
Three days later it was there then and I could test it.

And since it just hit me only from the stool.
Reason to buy was the advertised battery level indicator from the IPhone.
The simple work .. as you would normally expect from Apple products.
In addition, the pairing with 2 devices work as well as the commissioning and use of the headset without having read the manual.

The Samsung HS had a function: When the last pressure on the acceptance button has been called
The Sony-Ericsson had a function: When you press the accept button, the voice control (SIRI) has been activated

The M50 can do both and even better .. it calls the last participants to not just when you accidentally once the button is pressed. You have quasi "double-click")

After I've played on my iPhone by chance music, it was clear to me that is worth a review on Amazon.
That headset plays music either from on the iPhone or on the headset. A subsequent test with the navigation software confirmed to me that the announcements come on the headset.

I hope the headset has now proven itself in the endurance test.

POSITIVE:
- Long battery life
- Female voice informed when it is connected or disconnected
- Clear, loud and clear voice transmission in both directions
- Battery indicator in the iPhone
- Music can be played directly on the headset (Navi announcements also)
- Voice activation (IPhone) / SIRI and redial the last call
- Delivery (car charger and power adapter with 2 power connector adapter
- Sits even after long time pleasantly in the ear -> to forget it like times;)

NEGATIVE:
##### ##### NOTHING

Fully recommended -> in conjunction with an IPhone tested (test 1 week, in operation 42 hours effectively used about 8 hours)

NOTE 03.04.2014:
Have the headset 2 years ago bought for 25 at Amazon ..
Today it costs 4 times? I think having one of the swatter !!!