This is a bit of a weird one, a mini timer that you wear in your ear, the Mini Castle.
Advertised uses include:
- During mass transportation, alarming you not to pass your station and not bothering other passengers.
- During driving, remind you not going to sleep or remind you taking a break.
- During studying or take an exam.
- During cooking or housekeeping to remind you soup is ready or it’s time to take care of something.