A nice helmet with vents in the B-Note

The helmet is really smart and also sits comfortably. The magnetic closure is great and saves a really as you know the hassle of the usual closing.
Also the integrated light I find a good and safety matter. How long will the button cell remains to be seen. Unfortunately, it is not so easy to change the battery. For this, a screwdriver is required in any case. That would be much better thought out.
Even my helmet came with twisted ribbons on with me. So I had to fumble all apart and then threading again first. In a helmet at this price, this should not be.

But apart from these 2 points once I am satisfied with the purchase. And button cell batteries are available in large packages of brand manufacturers located in the bay.

Addendum: The supplied button cell were very quickly empty. The exchange did not prove easy. There is much force is required to push the unit from the helmet. It also directly one of the fastening pins is slightly bent. I can therefore only be the tip, care should be exercised. Here Abus could have done more thoughts with regard to the price of the helmet.