Placed advertising effective

I was looking for an original advertising idea.
Here you get this - at that cost.
The texts can be freely programmed as part of the memory space,
this change then after another.
So you can recruit flexibly and also to show eg the email address or phone number.

Points are deducted there only because of the fan in all to quiet environments even bother (with small fan motor stop)
moreover, the following power supplies is not always successful. And so it goes, for example, problems with my iPhone power adapter, with the 5V power supply my USB hubs it is not working.
But you can also do batteries purely :-)

Nevertheless:
Real original, ideal for congratulations and a gift. Ich finds super.