Guangzhou JingYou Electronic Technology Co., Ltd. is a company with independent intellectual property rights to research and produce high-precision crystal oscillator products. Its self-developed high-precision surface mount TCXO/VCTCXO products and production-equipment systems have software registration certificates and invention patent certificates issued by the State Intellectual Property Office respectively, and have passed ISO9001 quality system certification, GJB9001B military quality certification and ROHS green environmental certification.