wake clip / ticket

With the development of sociaty,the subways appear in many cities.It takes a lot convenience to urban peeople.Hours of busy work makes people tired and nervous easily.On the subways,a short break or having some music
is necessary .And, for some “deaf mutes”,the voice may be useless. for some exhausted travellers,it will be tense to catch the destination.
“wake -clip” is a system which will remind people that their destinations will come soon.the ticket just like a clip can be placed on the edge of pocket, the collar,or anywhere convenient .the ticket will be shaking before the destination until the passenger get off.