Device for students, drivers and friends of Bacchus. If you feel that at times you really want to sleep, but dangerous (semester ends, for example) - wait until the available outlets declare such a device here in Japan and take it all means. On first impression - a wireless headset or hearing aid. In fact - the moment to get rid of problems for truckers and external students.
This - alarm clock worn behind the ear, and when it is not needed - instead of fob keys, or simply in your pocket. When you have it behind the ear, in view of the small size does not attract the attention of others, but it works and gives alarm whenever your head tilted thirty degrees. Prudent Japanese envisaged setting virtually all BTE alarm parameters, and we can only go by their developed to perseverance and sleepless (but successful!) Work.