Would still improve!

+ Brilliant luminosity, much brighter than the Myo
+ Automatic dimming some getting used to (eg condensate while exhaling in the cold, snowfall or close branches insulate the light) but especially for cycling great.
+ Good burn time thanks LiIon and battery indicator (only three steps)
+ Programming on the PC works well (Windows), but what one is not clearly set, try out is announced.

- Included no charger
- A thicker USB charging port, where now everything is working with micro-B USB.
- Operation complicated. Switching by once rotating the lever without this has a clear notch point. Switching between the modes 2 sec. hold; switch between programs 10 Sec. hold, then select program number where the current program is indicated by flashing. Everything understood? Because the programs you can not remember, you can put the battery compartment a special list. In a controlled by a CPU light an indictment !!!! Therefore, rarely uses all the possibilities that would have the light. If you press the button by mistake too long, you have to look at how to get back to the desired setting. The Myo is much easier to use, press for brightness and flap for stray light.
- Proprietary replacement battery, which is also very expensive (will probably also built in TomTom navigation devices, but plug does not fit). Replicas there is not (yet). Spare most by far too weak AAA cells.
- Head straps are indeed innovative, but impractical. Can be clamped hardly uniform (left / right). A headband holds 10 times better as it has more seating on the head and also ziepst not. For quite considerable weight of 193g, the belts are only permissible when they are sitting pretty firmly. In addition, the construction twisted when you put the light in the pocket. When placing in the dark can be done to untangle then.

Conclusion: Great lantern with super bright technology. The "Nao2" should have a switch with a clear pressure point, another small push button for program selection and a simple display for the status display. And above all a normal headband.