April 1, 2015, Milpitas CA, USA – Tesoro Technology USA Inc., a manufacturer of high-tech gaming products, today announces that it will be the headline sponsor of the Hearthstone tournament at Insomnia 54, April 3 – 6, and attendees will be able to win PC gear and play the latest games in VR as well as enter for a chance to win a car at its booth.

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