Image wand or wavywand
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Compact Image Wand, just wavying to display message on air. Best for broadcasting your company, promotion and show you idea. It is also best for emergency application.
It also can be a amazing educational toy for kids as this product working under the theory of view persistance of human eyes.
Small size, easy to carry, you can attach it to your keyring, put into your purse
Storage 8-10 messages or pictures.