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We suppy light & sound machines(MC square x1) to the world. if you have questions for it, feel free to contact us. (Origin : Korea) We suppy light & sound machines(MC square x1) to the world. * What is Mc Square? MC Square is a neuro-scrience system that helps improve concentration, reduce stress and attain relaxation through the rhythm of Light and Sound. (1)Light & Sound Synchronization? Prior..
