They fit most helmets. If you can stick the metal backing to your headset, that means you can use them on it. Here are the dimensions of the metal headphone stand: 2.3 cm high x 6 cm wide.

Yes quite. We sell additional metal bracket sets on our site.

The hanging system is patented. It is a combination of magnetism and mechanical fixation. So, with the combination of the two, we are confident enough to tell you that if the metal support is correctly stuck to the helmet (especially not upside down) and that the TURN or LUM lighting is correctly attached to the support (see the instructions ), there is no risk of loss.