This switch is useful, to choose his scripts or even just off without leaving his smartphone. In everyday life, it seems to me even indispensable for Hue owners. Unfortunately, the choice of battery-free design, nice on paper, with disastrous consequences! First the switch is very thick (2.5 cm) that do not show the photos, and what makes it incongruous on a wall, and unsightly placed on furniture. Then, the key press is supposed to provide the necessary energy; but in practice it is just the case that rocks, and we must press hard enough, with good speed so that it works, and therefore often to try several times! With a little more pleasant sound ... In the family, so we use it often, but we also often pestons this mechanical operation. So I look forward to a finer version with batteries and normal keys or touch.