I had wished for Christmas and get the owl - and since then I use it every night and I am pleased to finally be able to read several hours at a time at rest. The owl stuck in a small box, which is vaguely reminiscent of a lipstick and is only slightly larger. There, the mini flashlight is housed comfortably and safely. A manual requires you to be non-device simply clamped to the temple, the little buttons and switches can loslesen. A battery is in the device already in, three more were in the small plastic bag in which was the owl. The batteries can be best bought from the manufacturer itself. I have never stayed anywhere else saw them. They look like giant button cells, rather thick. The clip, with which one the owl is clamped to the goggles stable and it is also suitable for more robust and more pop models, because it can include quite a bit. But even on my small model it is firmly without slackness. Now I can finally read at night without waking toddler or man - and can, if necessary, fine night hoodlums through the apartment without having to bother someone :-) My husband is now even a bit sad that he has no glasses, because he sometimes would like to read at night, if I have preferred in the realm of dreams while ... Well, bad luck! Finally, a reason to rejoice at the fact that one is wearing glasses!