Accessories: The headband is uncomfortable. I use the lamp only for the bike, but can not imagine that a jogger was happy with me. Fitted to the handlebars, the lamp is OK. For the battery is small pocket, with which one may lay kletten the battery to the frame. For Helmet Mounting missing accessories and so you need something a little trick and possibly use other Gumiringe. One must here constantly fear that the warm surface to damage the Microshell the helmet. The 1 m long cable is sufficient that the battery is stowed in the helmet assembly in the backpack. The charger and the battery are billigster style. Here 4 rod batteries were simply eingeschweißst in a bit of heat shrink tubing. That's it.
Conclusion: All in all, the Set a China Quality lowest quality. Only in this way, the low price is to be understood at all.
Little money, little quality. Those who buy cheap, buy twice. Here it is certainly better to take more money into the hands.
Clearly - no purchase recommendation!