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seasonal affective disorder
With 45,000 Units Shipped, Valkee’s Light-Emitting ‘Medical iPod’ Gets A Sleeker Look
Sep 23, 2013
Natasha Lomas
After closing a $9.7 million round this summer, Finnish startup Valkee -- which makes a light-emitting pair of earbuds designed to counteract seasonal affective disorder -- has put some of that cash t