Hotack, as a professional second-developer of Rockchip, is a solution company specializing in designing, engineering and manufacturing of smart products for over 16 years. We have strong engineer team to develop and produce different kind smart projector. And we are second developer of Rockchip, provide global ODM/OEM services and solutions based on Rockchip 3128, 3229, 3288, 3328, 3368, 3399 and so on. High quality and humanization desigh products have win large share in oversea market.