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Please feel free to contact us by this email if you have any question, we will response you as soon as we can.

Email: support@lasfour.net

Support time: Mon-Sat 9 AM-5 PM EST.

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R&D Team Office: 60-62 Thai Van Lung, Hoa Xuan Ward, Cam Le District, Da Nang City, Viet Nam, 550000.